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gelöst Cisco DHCP Option 66 und 67 testen bzw. prüfen

Mitglied: Windows10Gegner

Windows10Gegner (Level 2) - Jetzt verbinden

08.11.2018 um 14:08 Uhr, 472 Aufrufe, 18 Kommentare

Hallo,
ich stellte fest, dass beim Versuch über PXE zu starten gar kein Zugriffsversuch auf den TFTP-Server stattfindet.
Das habe ich mit tcpdump |grep tftp gemacht.
Wenn ich manuell mittels Client drauf zugreife sehe ich da Traffic.
TFTP und auch tcpdump sind also ok.

Da ich am zu bootenden Rechner (verschiedene Rechner getestet) PXE-32 TFTP Timeout erhalte, vermute ich ein Problem am DHCP.
Sowohl die VBox als auch der Dell zeigen mir keine Boot IP an. Daher ist jetzt meine Frage, wie ich prüfen kann, ob der DHCP (Cisco 886va) diese Informationen korrekt weitergibt.
01.
ip dhcp pool lokales-netz
02.
 network 10.0.0.0 255.255.255.0
03.
 default-router 10.0.0.254 
04.
 option 42 ip 130.149.17.8 
05.
 dns-server 176.103.130.130 
06.
 option 66 ip 10.0.0.115 
07.
 option 67 ascii pxelinux.0
Eine IP und das Gateway bekommt der Rechner, das wird mir angezeigt.
Sonst funktioniert der DHCP auch normal.
Ich vermute das Problem in Option 66, denn wenn kein Dateizugriff möglich wäre würde ich das mit tcpdump feststellen können-

LG Marco
Mitglied: tikayevent
08.11.2018 um 14:26 Uhr
Ich kenne die Option 66 nur als Hostname und nicht als IP.
Bitte warten ..
Mitglied: Lochkartenstanzer
08.11.2018, aktualisiert um 14:36 Uhr
Zitat von Windows10Gegner:

Sowohl die VBox als auch der Dell zeigen mir keine Boot IP an. Daher ist jetzt meine Frage, wie ich prüfen kann, ob der DHCP (Cisco 886va) diese Informationen korrekt weitergibt.

Moin,

damit:

sudo nmap --script broadcast-dhcp-discover
das sollte dann sowas liefern:

Starting Nmap 7.01 ( https://nmap.org ) at 2018-11-08 14:31 CET
Pre-scan script results:
| broadcast-dhcp-discover: 
|   Response 1 of 1: 
|     IP Offered: 172.31.117.78
|     DHCP Message Type: DHCPOFFER
|     Server Identifier: 172.31.117.1
|     IP Address Lease Time: 3650d00h00m00s
|     Renewal Time Value: 1825d00h00m00s
|     Rebinding Time Value: 3193d18h00m00s
|     Subnet Mask: 255.255.255.0
|     Router: 172.31.117.1
|     Domain Name Server: 172.31.117.1
|     Domain Name: dummy.bob
|     Broadcast Address: 172.31.117.255
|_    NTP Servers: 172.31.117.1
WARNING: No targets were specified, so 0 hosts scanned.
Nmap done: 0 IP addresses (0 hosts up) scanned in 0.61 seconds

Mit dhcpdump kannst Du dann speziell dhcp mitrsniffen.

lks
Bitte warten ..
Mitglied: Windows10Gegner
08.11.2018, aktualisiert um 14:56 Uhr
01.
djkuhpisse@netburst-oc:~$ sudo nmap --script broadcast-dhcp-discover
02.

03.
Starting Nmap 7.60 ( https://nmap.org ) at 2018-11-08 14:37 CET
04.
Pre-scan script results:
05.
| broadcast-dhcp-discover: 
06.
|   Response 1 of 1: 
07.
|     IP Offered: 10.0.0.53
08.
|     DHCP Message Type: DHCPOFFER
09.
|     Server Identifier: 10.0.0.254
10.
|     IP Address Lease Time: 1d00h00m00s
11.
|     Renewal Time Value: 12h00m00s
12.
|     Rebinding Time Value: 21h00m00s
13.
|     Subnet Mask: 255.255.255.0
14.
|     Router: 10.0.0.254
15.
|     NTP Servers: 130.149.17.8
16.
|     Domain Name Server: 176.103.130.130
17.
|     TFTP Server Name: 
18.
| \x00\x00s
19.
|_    Bootfile Name: pxelinux.0
20.
WARNING: No targets were specified, so 0 hosts scanned.
21.
Nmap done: 0 IP addresses (0 hosts up) scanned in 2.87 seconds
22.
djkuhpisse@netburst-oc:~$ 
Danke für die Info.
Jetzt ist mir klar, was hier die ganze Zeit passiert. Und ich suchte den Fehler am TFTP.
Ich würde gerne den DNS für neue Geräte auf diesem lassen, denn da werden Werbedomains nicht aufgelöst.
Daher würde ich gerne nur die IP 10.0.0.115 übergeben.

@tikayevent
Wenn das nur mit Domain gehen sollte sollte es beim Cisco keine Option geben, eine IP einzugeben.
Der Sinn einer "nur Domain"-Lösung ohne reine IP-Lösung ist für mich auch nicht erkennbar. Ich meine ich habe das mit IP schon gesehen.


Ich habe jetzt DNS und Option 66 geändert, funktioniert soweit in der Theorie.
01.
djkuhpisse@netburst-oc:~$ sudo nmap --script broadcast-dhcp-discover
02.

03.
Starting Nmap 7.60 ( https://nmap.org ) at 2018-11-08 14:47 CET
04.
Pre-scan script results:
05.
| broadcast-dhcp-discover: 
06.
|   Response 1 of 1: 
07.
|     IP Offered: 10.0.0.53
08.
|     DHCP Message Type: DHCPOFFER
09.
|     Server Identifier: 10.0.0.254
10.
|     IP Address Lease Time: 1d00h00m00s
11.
|     Renewal Time Value: 12h00m00s
12.
|     Rebinding Time Value: 21h00m00s
13.
|     Subnet Mask: 255.255.255.0
14.
|     Router: 10.0.0.254
15.
|     NTP Servers: 130.149.17.8
16.
|     Domain Name Server: 10.0.0.254
17.
|     TFTP Server Name: djkuhpisse.ddns.net
18.
|_    Bootfile Name: pxelinux.0
19.
WARNING: No targets were specified, so 0 hosts scanned.
20.
Nmap done: 0 IP addresses (0 hosts up) scanned in 0.82 seconds
21.
djkuhpisse@netburst-oc:~$ 
Leider aber nicht in der Praxis. Wieder Timeout. TFTP ist ok.

EDIT:
dhcpdump zeigt mir nichts mit Option 66 an.
01.
OPTION:  53 (  1) DHCP message type         5 (DHCPACK)
02.
OPTION:  54 (  4) Server identifier         10.0.0.254
03.
OPTION:  51 (  4) IP address leasetime      86400 (24h)
04.
OPTION:  58 (  4) T1                        43200 (12h)
05.
OPTION:  59 (  4) T2                        75600 (21h)
06.
OPTION:   1 (  4) Subnet mask               255.255.255.0
07.
OPTION:   3 (  4) Routers                   10.0.0.254
08.
OPTION:   6 (  4) DNS server                10.0.0.254
09.
OPTION:  67 ( 10) Bootfile name             pxelinux.0
Bitte warten ..
Mitglied: aqui
08.11.2018, aktualisiert um 14:51 Uhr
Du kannst auch den DHCP Request des Clients mit dem Wireshark mitsniffern. Dort ist klar ersichtlich welche Options der requested.
Analog dazu kannst du dann die Antwort des Cisco DHCP Servers ansehen, der diese requesteten Options beantwortet haben muss.
Das steht alles in den DHCP Paketen.

Cisco hat zusätzlich noch die Option 150 die den TFTP Server angibt. Die ist aber vermutlich nur für deren Telefone erforderlich. Unterscheiden tut sie sich in der Beziehung von der Option 66 das man dort multiple IP oder Hostnamen definieren kann !
Wireshark ist hier aber letztlich dein bester Freund !
Bitte warten ..
Mitglied: Windows10Gegner
08.11.2018, aktualisiert um 15:06 Uhr
Wireshark sagt,
Server host name not given
Boot File name not given

Später kommt dann Option 67
Length: 10
Bootfile name: pxelinux.0

Von Option 66 keine Spur.
Wie kann man da nur die Pakete speichern, die aktuell angezeigt werden (gefiltert mit bootp)?
Dann kann ich das gerne hochladen.
EDIT:
01.
ip dhcp pool lokales-netz
02.
 network 10.0.0.0 255.255.255.0
03.
 default-router 10.0.0.254 
04.
 option 42 ip 130.149.17.8 
05.
 dns-server 10.0.0.254 
06.
 option 66 ascii domain.intern
07.
 option 67 ascii pxelinux.0
Bitte warten ..
Mitglied: aqui
08.11.2018 um 15:06 Uhr
Markieren und "save as". Sinnvollerweise als ASCII Text wenn du es hier posten willst.
Die Options sollten eigentlich im ersten Request stehen. Der DHJCP Server liegert nur das was auch requested wird.
Bitte warten ..
Mitglied: Windows10Gegner
08.11.2018 um 15:15 Uhr
Habs hier hochgeladen: https://files.danwin1210.me/uploads/11-2018/tftp1.pcapng
Konnte im Request nichts zu Option 66 finden.
Bitte warten ..
Mitglied: aqui
08.11.2018, aktualisiert um 15:27 Uhr
Warum wenn du hier den ASCII Text Output posten kannst
Datei -> Paketdissektion exportieren -> als reinen Text -> Fertisch !
Zwangswerbung und Viren von Sharehostern hat keiner gerne...
Bitte warten ..
Mitglied: Windows10Gegner
08.11.2018 um 15:21 Uhr
01.
No.     Time           Source                Destination           Protocol Length Info
02.
      1 0.000000000    fr.a2dfp.net          255.255.255.255       DHCP     590    DHCP Discover - Transaction ID 0xa3ead968
03.

04.
Frame 1: 590 bytes on wire (4720 bits), 590 bytes captured (4720 bits) on interface 0
05.
Ethernet II, Src: Dell_ea:d9:68 (00:1a:a0:ea:d9:68), Dst: Broadcast (ff:ff:ff:ff:ff:ff)
06.
Internet Protocol Version 4, Src: fr.a2dfp.net (0.0.0.0), Dst: 255.255.255.255 (255.255.255.255)
07.
User Datagram Protocol, Src Port: bootpc (68), Dst Port: bootps (67)
08.
Bootstrap Protocol (Discover)
09.

10.
No.     Time           Source                Destination           Protocol Length Info
11.
      2 0.000020413    fr.a2dfp.net          255.255.255.255       DHCP     590    DHCP Discover - Transaction ID 0xa3ead968
12.

13.
Frame 2: 590 bytes on wire (4720 bits), 590 bytes captured (4720 bits) on interface 0
14.
Ethernet II, Src: Dell_ea:d9:68 (00:1a:a0:ea:d9:68), Dst: Broadcast (ff:ff:ff:ff:ff:ff)
15.
Internet Protocol Version 4, Src: fr.a2dfp.net (0.0.0.0), Dst: 255.255.255.255 (255.255.255.255)
16.
User Datagram Protocol, Src Port: bootpc (68), Dst Port: bootps (67)
17.
Bootstrap Protocol (Discover)
18.

19.
No.     Time           Source                Destination           Protocol Length Info
20.
      3 0.001441518    gateway               255.255.255.255       DHCP     342    DHCP Offer    - Transaction ID 0xa3ead968
21.

22.
Frame 3: 342 bytes on wire (2736 bits), 342 bytes captured (2736 bits) on interface 0
23.
Ethernet II, Src: Cisco_d1:b5:5c (b8:38:61:d1:b5:5c), Dst: Broadcast (ff:ff:ff:ff:ff:ff)
24.
Internet Protocol Version 4, Src: gateway (10.0.0.254), Dst: 255.255.255.255 (255.255.255.255)
25.
User Datagram Protocol, Src Port: bootps (67), Dst Port: bootpc (68)
26.
Bootstrap Protocol (Offer)
27.

28.
No.     Time           Source                Destination           Protocol Length Info
29.
      4 0.001453545    gateway               255.255.255.255       DHCP     342    DHCP Offer    - Transaction ID 0xa3ead968
30.

31.
Frame 4: 342 bytes on wire (2736 bits), 342 bytes captured (2736 bits) on interface 0
32.
Ethernet II, Src: Cisco_d1:b5:5c (b8:38:61:d1:b5:5c), Dst: Broadcast (ff:ff:ff:ff:ff:ff)
33.
Internet Protocol Version 4, Src: gateway (10.0.0.254), Dst: 255.255.255.255 (255.255.255.255)
34.
User Datagram Protocol, Src Port: bootps (67), Dst Port: bootpc (68)
35.
Bootstrap Protocol (Offer)
36.

37.
No.     Time           Source                Destination           Protocol Length Info
38.
      5 4.064613182    fr.a2dfp.net          255.255.255.255       DHCP     590    DHCP Request  - Transaction ID 0xa3ead968
39.

40.
Frame 5: 590 bytes on wire (4720 bits), 590 bytes captured (4720 bits) on interface 0
41.
Ethernet II, Src: Dell_ea:d9:68 (00:1a:a0:ea:d9:68), Dst: Broadcast (ff:ff:ff:ff:ff:ff)
42.
Internet Protocol Version 4, Src: fr.a2dfp.net (0.0.0.0), Dst: 255.255.255.255 (255.255.255.255)
43.
User Datagram Protocol, Src Port: bootpc (68), Dst Port: bootps (67)
44.
Bootstrap Protocol (Request)
45.

46.
No.     Time           Source                Destination           Protocol Length Info
47.
      6 4.064631738    fr.a2dfp.net          255.255.255.255       DHCP     590    DHCP Request  - Transaction ID 0xa3ead968
48.

49.
Frame 6: 590 bytes on wire (4720 bits), 590 bytes captured (4720 bits) on interface 0
50.
Ethernet II, Src: Dell_ea:d9:68 (00:1a:a0:ea:d9:68), Dst: Broadcast (ff:ff:ff:ff:ff:ff)
51.
Internet Protocol Version 4, Src: fr.a2dfp.net (0.0.0.0), Dst: 255.255.255.255 (255.255.255.255)
52.
User Datagram Protocol, Src Port: bootpc (68), Dst Port: bootps (67)
53.
Bootstrap Protocol (Request)
54.

55.
No.     Time           Source                Destination           Protocol Length Info
56.
      7 4.065832227    gateway               255.255.255.255       DHCP     342    DHCP ACK      - Transaction ID 0xa3ead968
57.

58.
Frame 7: 342 bytes on wire (2736 bits), 342 bytes captured (2736 bits) on interface 0
59.
Ethernet II, Src: Cisco_d1:b5:5c (b8:38:61:d1:b5:5c), Dst: Broadcast (ff:ff:ff:ff:ff:ff)
60.
Internet Protocol Version 4, Src: gateway (10.0.0.254), Dst: 255.255.255.255 (255.255.255.255)
61.
User Datagram Protocol, Src Port: bootps (67), Dst Port: bootpc (68)
62.
Bootstrap Protocol (ACK)
63.

64.
No.     Time           Source                Destination           Protocol Length Info
65.
      8 4.065844424    gateway               255.255.255.255       DHCP     342    DHCP ACK      - Transaction ID 0xa3ead968
66.

67.
Frame 8: 342 bytes on wire (2736 bits), 342 bytes captured (2736 bits) on interface 0
68.
Ethernet II, Src: Cisco_d1:b5:5c (b8:38:61:d1:b5:5c), Dst: Broadcast (ff:ff:ff:ff:ff:ff)
69.
Internet Protocol Version 4, Src: gateway (10.0.0.254), Dst: 255.255.255.255 (255.255.255.255)
70.
User Datagram Protocol, Src Port: bootps (67), Dst Port: bootpc (68)
71.
Bootstrap Protocol (ACK)
Ist halt etwas unübersichtlich.
Bitte warten ..
Mitglied: aqui
08.11.2018, aktualisiert um 15:29 Uhr
Ja, leider. Du hast die "Paketdissektion exportieren" nicht gewählt
Dann sahe es so aus:
No. Time Source Destination Protocol Length Info
19 17.909640 0.0.0.0 255.255.255.255 DHCP 342 DHCP Request - Transaction ID 0x447ffc7e

Frame 19: 342 bytes on wire (2736 bits), 342 bytes captured (2736 bits)
Ethernet II, Src: Apple_a5:e9:f6 (78:4f:43:ff:ff:ff), Dst: Broadcast (ff:ff:ff:ff:ff:ff)
Internet Protocol Version 4, Src: 0.0.0.0, Dst: 255.255.255.255
User Datagram Protocol, Src Port: 68, Dst Port: 67
Bootstrap Protocol (Request)
Message type: Boot Request (1)
Hardware type: Ethernet (0x01)
Hardware address length: 6
Hops: 0
Transaction ID: 0x447ffc7e
Seconds elapsed: 0
Bootp flags: 0x0000 (Unicast)
Client IP address: 0.0.0.0
Your (client) IP address: 0.0.0.0
Next server IP address: 0.0.0.0
Relay agent IP address: 0.0.0.0
Client MAC address: Apple_a5:e (78:4f:43:ff:e9:ff)
Client hardware address padding: 00000000000000000000
Server host name not given
Boot file name not given
Magic cookie: DHCP
Option: (53) DHCP Message Type (Request)
Option: (55) Parameter Request List
Option: (57) Maximum DHCP Message Size
Option: (61) Client identifier
Option: (50) Requested IP Address
Option: (51) IP Address Lease Time
Option: (12) Host Name
Option: (255) End
Padding: 000000000000
Bitte warten ..
Mitglied: Windows10Gegner
08.11.2018 um 16:58 Uhr
Habe es jetzt wie gewünscht gemacht (File Export Packet Dissections) . Ändert leider nichts.
01.
No.     Time           Source                Destination           Protocol Length Info
02.
      1 0.000000000    fr.a2dfp.net          255.255.255.255       DHCP     590    DHCP Discover - Transaction ID 0xa3ead968
03.

04.
Frame 1: 590 bytes on wire (4720 bits), 590 bytes captured (4720 bits) on interface 0
05.
Ethernet II, Src: Dell_ea:d9:68 (00:1a:a0:ea:d9:68), Dst: Broadcast (ff:ff:ff:ff:ff:ff)
06.
Internet Protocol Version 4, Src: fr.a2dfp.net (0.0.0.0), Dst: 255.255.255.255 (255.255.255.255)
07.
User Datagram Protocol, Src Port: bootpc (68), Dst Port: bootps (67)
08.
Bootstrap Protocol (Discover)
09.

10.
No.     Time           Source                Destination           Protocol Length Info
11.
      2 0.000020413    fr.a2dfp.net          255.255.255.255       DHCP     590    DHCP Discover - Transaction ID 0xa3ead968
12.

13.
Frame 2: 590 bytes on wire (4720 bits), 590 bytes captured (4720 bits) on interface 0
14.
Ethernet II, Src: Dell_ea:d9:68 (00:1a:a0:ea:d9:68), Dst: Broadcast (ff:ff:ff:ff:ff:ff)
15.
Internet Protocol Version 4, Src: fr.a2dfp.net (0.0.0.0), Dst: 255.255.255.255 (255.255.255.255)
16.
User Datagram Protocol, Src Port: bootpc (68), Dst Port: bootps (67)
17.
Bootstrap Protocol (Discover)
18.

19.
No.     Time           Source                Destination           Protocol Length Info
20.
      3 0.001441518    gateway               255.255.255.255       DHCP     342    DHCP Offer    - Transaction ID 0xa3ead968
21.

22.
Frame 3: 342 bytes on wire (2736 bits), 342 bytes captured (2736 bits) on interface 0
23.
Ethernet II, Src: Cisco_d1:b5:5c (b8:38:61:d1:b5:5c), Dst: Broadcast (ff:ff:ff:ff:ff:ff)
24.
Internet Protocol Version 4, Src: gateway (10.0.0.254), Dst: 255.255.255.255 (255.255.255.255)
25.
User Datagram Protocol, Src Port: bootps (67), Dst Port: bootpc (68)
26.
Bootstrap Protocol (Offer)
27.

28.
No.     Time           Source                Destination           Protocol Length Info
29.
      4 0.001453545    gateway               255.255.255.255       DHCP     342    DHCP Offer    - Transaction ID 0xa3ead968
30.

31.
Frame 4: 342 bytes on wire (2736 bits), 342 bytes captured (2736 bits) on interface 0
32.
Ethernet II, Src: Cisco_d1:b5:5c (b8:38:61:d1:b5:5c), Dst: Broadcast (ff:ff:ff:ff:ff:ff)
33.
Internet Protocol Version 4, Src: gateway (10.0.0.254), Dst: 255.255.255.255 (255.255.255.255)
34.
User Datagram Protocol, Src Port: bootps (67), Dst Port: bootpc (68)
35.
Bootstrap Protocol (Offer)
36.

37.
No.     Time           Source                Destination           Protocol Length Info
38.
      5 4.064613182    fr.a2dfp.net          255.255.255.255       DHCP     590    DHCP Request  - Transaction ID 0xa3ead968
39.

40.
Frame 5: 590 bytes on wire (4720 bits), 590 bytes captured (4720 bits) on interface 0
41.
Ethernet II, Src: Dell_ea:d9:68 (00:1a:a0:ea:d9:68), Dst: Broadcast (ff:ff:ff:ff:ff:ff)
42.
Internet Protocol Version 4, Src: fr.a2dfp.net (0.0.0.0), Dst: 255.255.255.255 (255.255.255.255)
43.
User Datagram Protocol, Src Port: bootpc (68), Dst Port: bootps (67)
44.
Bootstrap Protocol (Request)
45.

46.
No.     Time           Source                Destination           Protocol Length Info
47.
      6 4.064631738    fr.a2dfp.net          255.255.255.255       DHCP     590    DHCP Request  - Transaction ID 0xa3ead968
48.

49.
Frame 6: 590 bytes on wire (4720 bits), 590 bytes captured (4720 bits) on interface 0
50.
Ethernet II, Src: Dell_ea:d9:68 (00:1a:a0:ea:d9:68), Dst: Broadcast (ff:ff:ff:ff:ff:ff)
51.
Internet Protocol Version 4, Src: fr.a2dfp.net (0.0.0.0), Dst: 255.255.255.255 (255.255.255.255)
52.
User Datagram Protocol, Src Port: bootpc (68), Dst Port: bootps (67)
53.
Bootstrap Protocol (Request)
54.

55.
No.     Time           Source                Destination           Protocol Length Info
56.
      7 4.065832227    gateway               255.255.255.255       DHCP     342    DHCP ACK      - Transaction ID 0xa3ead968
57.

58.
Frame 7: 342 bytes on wire (2736 bits), 342 bytes captured (2736 bits) on interface 0
59.
Ethernet II, Src: Cisco_d1:b5:5c (b8:38:61:d1:b5:5c), Dst: Broadcast (ff:ff:ff:ff:ff:ff)
60.
Internet Protocol Version 4, Src: gateway (10.0.0.254), Dst: 255.255.255.255 (255.255.255.255)
61.
User Datagram Protocol, Src Port: bootps (67), Dst Port: bootpc (68)
62.
Bootstrap Protocol (ACK)
63.

64.
No.     Time           Source                Destination           Protocol Length Info
65.
      8 4.065844424    gateway               255.255.255.255       DHCP     342    DHCP ACK      - Transaction ID 0xa3ead968
66.

67.
Frame 8: 342 bytes on wire (2736 bits), 342 bytes captured (2736 bits) on interface 0
68.
Ethernet II, Src: Cisco_d1:b5:5c (b8:38:61:d1:b5:5c), Dst: Broadcast (ff:ff:ff:ff:ff:ff)
69.
Internet Protocol Version 4, Src: gateway (10.0.0.254), Dst: 255.255.255.255 (255.255.255.255)
70.
User Datagram Protocol, Src Port: bootps (67), Dst Port: bootpc (68)
71.
Bootstrap Protocol (ACK)
Bitte warten ..
Mitglied: aqui
08.11.2018 um 17:09 Uhr
Du musst natürlich auch VORHER mit dem kleinen grauen Pfeil vorne den Inhalt öffnen
Bitte warten ..
Mitglied: Windows10Gegner
08.11.2018 um 17:15 Uhr
Jetzt sollte alles dabei sein.
01.
No.     Time           Source                Destination           Protocol Length Info
02.
      1 0.000000000    fr.a2dfp.net          255.255.255.255       DHCP     590    DHCP Discover - Transaction ID 0xa3ead968
03.

04.
Frame 1: 590 bytes on wire (4720 bits), 590 bytes captured (4720 bits) on interface 0
05.
    Interface id: 0 (bond0)
06.
        Interface name: bond0
07.
    Encapsulation type: Ethernet (1)
08.
    Arrival Time: Nov  8, 2018 14:58:44.740071656 CET
09.
    [Time shift for this packet: 0.000000000 seconds]
10.
    Epoch Time: 1541685524.740071656 seconds
11.
    [Time delta from previous captured frame: 0.000000000 seconds]
12.
    [Time delta from previous displayed frame: 0.000000000 seconds]
13.
    [Time since reference or first frame: 0.000000000 seconds]
14.
    Frame Number: 1
15.
    Frame Length: 590 bytes (4720 bits)
16.
    Capture Length: 590 bytes (4720 bits)
17.
    [Frame is marked: False]
18.
    [Frame is ignored: False]
19.
    [Protocols in frame: eth:ethertype:ip:udp:bootp]
20.
    [Coloring Rule Name: UDP]
21.
    [Coloring Rule String: udp]
22.
Ethernet II, Src: Dell_ea:d9:68 (00:1a:a0:ea:d9:68), Dst: Broadcast (ff:ff:ff:ff:ff:ff)
23.
    Destination: Broadcast (ff:ff:ff:ff:ff:ff)
24.
        Address: Broadcast (ff:ff:ff:ff:ff:ff)
25.
        .... ..1. .... .... .... .... = LG bit: Locally administered address (this is NOT the factory default)
26.
        .... ...1 .... .... .... .... = IG bit: Group address (multicast/broadcast)
27.
    Source: Dell_ea:d9:68 (00:1a:a0:ea:d9:68)
28.
        Address: Dell_ea:d9:68 (00:1a:a0:ea:d9:68)
29.
        .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)
30.
        .... ...0 .... .... .... .... = IG bit: Individual address (unicast)
31.
    Type: IPv4 (0x0800)
32.
Internet Protocol Version 4, Src: fr.a2dfp.net (0.0.0.0), Dst: 255.255.255.255 (255.255.255.255)
33.
    0100 .... = Version: 4
34.
    .... 0101 = Header Length: 20 bytes (5)
35.
    Differentiated Services Field: 0x00 (DSCP: CS0, ECN: Not-ECT)
36.
        0000 00.. = Differentiated Services Codepoint: Default (0)
37.
        .... ..00 = Explicit Congestion Notification: Not ECN-Capable Transport (0)
38.
    Total Length: 576
39.
    Identification: 0x0002 (2)
40.
    Flags: 0x0000
41.
        0... .... .... .... = Reserved bit: Not set
42.
        .0.. .... .... .... = Don't fragment: Not set
43.
        ..0. .... .... .... = More fragments: Not set
44.
        ...0 0000 0000 0000 = Fragment offset: 0
45.
    Time to live: 20
46.
    Protocol: UDP (17)
47.
    Header checksum: 0xa4ac [validation disabled]
48.
    [Header checksum status: Unverified]
49.
    Source: fr.a2dfp.net (0.0.0.0)
50.
    Destination: 255.255.255.255 (255.255.255.255)
51.
User Datagram Protocol, Src Port: bootpc (68), Dst Port: bootps (67)
52.
    Source Port: bootpc (68)
53.
    Destination Port: bootps (67)
54.
    Length: 556
55.
    Checksum: 0xa7c6 [unverified]
56.
    [Checksum Status: Unverified]
57.
    [Stream index: 0]
58.
Bootstrap Protocol (Discover)
59.
    Message type: Boot Request (1)
60.
    Hardware type: Ethernet (0x01)
61.
    Hardware address length: 6
62.
    Hops: 0
63.
    Transaction ID: 0xa3ead968
64.
    Seconds elapsed: 16
65.
    Bootp flags: 0x8000, Broadcast flag (Broadcast)
66.
        1... .... .... .... = Broadcast flag: Broadcast
67.
        .000 0000 0000 0000 = Reserved flags: 0x0000
68.
    Client IP address: fr.a2dfp.net (0.0.0.0)
69.
    Your (client) IP address: fr.a2dfp.net (0.0.0.0)
70.
    Next server IP address: fr.a2dfp.net (0.0.0.0)
71.
    Relay agent IP address: fr.a2dfp.net (0.0.0.0)
72.
    Client MAC address: Dell_ea:d9:68 (00:1a:a0:ea:d9:68)
73.
    Client hardware address padding: 00000000000000000000
74.
    Server host name not given
75.
    Boot file name not given
76.
    Magic cookie: DHCP
77.
    Option: (53) DHCP Message Type (Discover)
78.
        Length: 1
79.
        DHCP: Discover (1)
80.
    Option: (55) Parameter Request List
81.
        Length: 24
82.
        Parameter Request List Item: (1) Subnet Mask
83.
        Parameter Request List Item: (2) Time Offset
84.
        Parameter Request List Item: (3) Router
85.
        Parameter Request List Item: (5) Name Server
86.
        Parameter Request List Item: (6) Domain Name Server
87.
        Parameter Request List Item: (11) Resource Location Server
88.
        Parameter Request List Item: (12) Host Name
89.
        Parameter Request List Item: (13) Boot File Size
90.
        Parameter Request List Item: (15) Domain Name
91.
        Parameter Request List Item: (16) Swap Server
92.
        Parameter Request List Item: (17) Root Path
93.
        Parameter Request List Item: (18) Extensions Path
94.
        Parameter Request List Item: (43) Vendor-Specific Information
95.
        Parameter Request List Item: (54) DHCP Server Identifier
96.
        Parameter Request List Item: (60) Vendor class identifier
97.
        Parameter Request List Item: (67) Bootfile name
98.
        Parameter Request List Item: (128) DOCSIS full security server IP [TODO]
99.
        Parameter Request List Item: (129) PXE - undefined (vendor specific)
100.
        Parameter Request List Item: (130) PXE - undefined (vendor specific)
101.
        Parameter Request List Item: (131) PXE - undefined (vendor specific)
102.
        Parameter Request List Item: (132) PXE - undefined (vendor specific)
103.
        Parameter Request List Item: (133) PXE - undefined (vendor specific)
104.
        Parameter Request List Item: (134) PXE - undefined (vendor specific)
105.
        Parameter Request List Item: (135) PXE - undefined (vendor specific)
106.
    Option: (57) Maximum DHCP Message Size
107.
        Length: 2
108.
        Maximum DHCP Message Size: 1260
109.
    Option: (97) UUID/GUID-based Client Identifier
110.
        Length: 17
111.
        Client Identifier (UUID): 4c4c4544-004d-3610-8034-b5c04f44334a
112.
    Option: (93) Client System Architecture
113.
        Length: 2
114.
        Client System Architecture: IA x86 PC (0)
115.
    Option: (94) Client Network Device Interface
116.
        Length: 3
117.
        Major Version: 2
118.
        Minor Version: 1
119.
    Option: (60) Vendor class identifier
120.
        Length: 32
121.
        Vendor class identifier: PXEClient:Arch:00000:UNDI:002001
122.
    Option: (255) End
123.
        Option End: 255
124.
    Padding: 000000000000000000000000000000000000000000000000...
125.

126.
No.     Time           Source                Destination           Protocol Length Info
127.
      2 0.000020413    fr.a2dfp.net          255.255.255.255       DHCP     590    DHCP Discover - Transaction ID 0xa3ead968
128.

129.
Frame 2: 590 bytes on wire (4720 bits), 590 bytes captured (4720 bits) on interface 0
130.
    Interface id: 0 (bond0)
131.
        Interface name: bond0
132.
    Encapsulation type: Ethernet (1)
133.
    Arrival Time: Nov  8, 2018 14:58:44.740092069 CET
134.
    [Time shift for this packet: 0.000000000 seconds]
135.
    Epoch Time: 1541685524.740092069 seconds
136.
    [Time delta from previous captured frame: 0.000020413 seconds]
137.
    [Time delta from previous displayed frame: 0.000020413 seconds]
138.
    [Time since reference or first frame: 0.000020413 seconds]
139.
    Frame Number: 2
140.
    Frame Length: 590 bytes (4720 bits)
141.
    Capture Length: 590 bytes (4720 bits)
142.
    [Frame is marked: False]
143.
    [Frame is ignored: False]
144.
    [Protocols in frame: eth:ethertype:ip:udp:bootp]
145.
    [Coloring Rule Name: UDP]
146.
    [Coloring Rule String: udp]
147.
Ethernet II, Src: Dell_ea:d9:68 (00:1a:a0:ea:d9:68), Dst: Broadcast (ff:ff:ff:ff:ff:ff)
148.
    Destination: Broadcast (ff:ff:ff:ff:ff:ff)
149.
        Address: Broadcast (ff:ff:ff:ff:ff:ff)
150.
        .... ..1. .... .... .... .... = LG bit: Locally administered address (this is NOT the factory default)
151.
        .... ...1 .... .... .... .... = IG bit: Group address (multicast/broadcast)
152.
    Source: Dell_ea:d9:68 (00:1a:a0:ea:d9:68)
153.
        Address: Dell_ea:d9:68 (00:1a:a0:ea:d9:68)
154.
        .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)
155.
        .... ...0 .... .... .... .... = IG bit: Individual address (unicast)
156.
    Type: IPv4 (0x0800)
157.
Internet Protocol Version 4, Src: fr.a2dfp.net (0.0.0.0), Dst: 255.255.255.255 (255.255.255.255)
158.
    0100 .... = Version: 4
159.
    .... 0101 = Header Length: 20 bytes (5)
160.
    Differentiated Services Field: 0x00 (DSCP: CS0, ECN: Not-ECT)
161.
        0000 00.. = Differentiated Services Codepoint: Default (0)
162.
        .... ..00 = Explicit Congestion Notification: Not ECN-Capable Transport (0)
163.
    Total Length: 576
164.
    Identification: 0x0002 (2)
165.
    Flags: 0x0000
166.
        0... .... .... .... = Reserved bit: Not set
167.
        .0.. .... .... .... = Don't fragment: Not set
168.
        ..0. .... .... .... = More fragments: Not set
169.
        ...0 0000 0000 0000 = Fragment offset: 0
170.
    Time to live: 20
171.
    Protocol: UDP (17)
172.
    Header checksum: 0xa4ac [validation disabled]
173.
    [Header checksum status: Unverified]
174.
    Source: fr.a2dfp.net (0.0.0.0)
175.
    Destination: 255.255.255.255 (255.255.255.255)
176.
User Datagram Protocol, Src Port: bootpc (68), Dst Port: bootps (67)
177.
    Source Port: bootpc (68)
178.
    Destination Port: bootps (67)
179.
    Length: 556
180.
    Checksum: 0xa7c6 [unverified]
181.
    [Checksum Status: Unverified]
182.
    [Stream index: 0]
183.
Bootstrap Protocol (Discover)
184.
    Message type: Boot Request (1)
185.
    Hardware type: Ethernet (0x01)
186.
    Hardware address length: 6
187.
    Hops: 0
188.
    Transaction ID: 0xa3ead968
189.
    Seconds elapsed: 16
190.
    Bootp flags: 0x8000, Broadcast flag (Broadcast)
191.
        1... .... .... .... = Broadcast flag: Broadcast
192.
        .000 0000 0000 0000 = Reserved flags: 0x0000
193.
    Client IP address: fr.a2dfp.net (0.0.0.0)
194.
    Your (client) IP address: fr.a2dfp.net (0.0.0.0)
195.
    Next server IP address: fr.a2dfp.net (0.0.0.0)
196.
    Relay agent IP address: fr.a2dfp.net (0.0.0.0)
197.
    Client MAC address: Dell_ea:d9:68 (00:1a:a0:ea:d9:68)
198.
    Client hardware address padding: 00000000000000000000
199.
    Server host name not given
200.
    Boot file name not given
201.
    Magic cookie: DHCP
202.
    Option: (53) DHCP Message Type (Discover)
203.
        Length: 1
204.
        DHCP: Discover (1)
205.
    Option: (55) Parameter Request List
206.
        Length: 24
207.
        Parameter Request List Item: (1) Subnet Mask
208.
        Parameter Request List Item: (2) Time Offset
209.
        Parameter Request List Item: (3) Router
210.
        Parameter Request List Item: (5) Name Server
211.
        Parameter Request List Item: (6) Domain Name Server
212.
        Parameter Request List Item: (11) Resource Location Server
213.
        Parameter Request List Item: (12) Host Name
214.
        Parameter Request List Item: (13) Boot File Size
215.
        Parameter Request List Item: (15) Domain Name
216.
        Parameter Request List Item: (16) Swap Server
217.
        Parameter Request List Item: (17) Root Path
218.
        Parameter Request List Item: (18) Extensions Path
219.
        Parameter Request List Item: (43) Vendor-Specific Information
220.
        Parameter Request List Item: (54) DHCP Server Identifier
221.
        Parameter Request List Item: (60) Vendor class identifier
222.
        Parameter Request List Item: (67) Bootfile name
223.
        Parameter Request List Item: (128) DOCSIS full security server IP [TODO]
224.
        Parameter Request List Item: (129) PXE - undefined (vendor specific)
225.
        Parameter Request List Item: (130) PXE - undefined (vendor specific)
226.
        Parameter Request List Item: (131) PXE - undefined (vendor specific)
227.
        Parameter Request List Item: (132) PXE - undefined (vendor specific)
228.
        Parameter Request List Item: (133) PXE - undefined (vendor specific)
229.
        Parameter Request List Item: (134) PXE - undefined (vendor specific)
230.
        Parameter Request List Item: (135) PXE - undefined (vendor specific)
231.
    Option: (57) Maximum DHCP Message Size
232.
        Length: 2
233.
        Maximum DHCP Message Size: 1260
234.
    Option: (97) UUID/GUID-based Client Identifier
235.
        Length: 17
236.
        Client Identifier (UUID): 4c4c4544-004d-3610-8034-b5c04f44334a
237.
    Option: (93) Client System Architecture
238.
        Length: 2
239.
        Client System Architecture: IA x86 PC (0)
240.
    Option: (94) Client Network Device Interface
241.
        Length: 3
242.
        Major Version: 2
243.
        Minor Version: 1
244.
    Option: (60) Vendor class identifier
245.
        Length: 32
246.
        Vendor class identifier: PXEClient:Arch:00000:UNDI:002001
247.
    Option: (255) End
248.
        Option End: 255
249.
    Padding: 000000000000000000000000000000000000000000000000...
250.

251.
No.     Time           Source                Destination           Protocol Length Info
252.
      3 0.001441518    gateway               255.255.255.255       DHCP     342    DHCP Offer    - Transaction ID 0xa3ead968
253.

254.
Frame 3: 342 bytes on wire (2736 bits), 342 bytes captured (2736 bits) on interface 0
255.
    Interface id: 0 (bond0)
256.
        Interface name: bond0
257.
    Encapsulation type: Ethernet (1)
258.
    Arrival Time: Nov  8, 2018 14:58:44.741513174 CET
259.
    [Time shift for this packet: 0.000000000 seconds]
260.
    Epoch Time: 1541685524.741513174 seconds
261.
    [Time delta from previous captured frame: 0.001421105 seconds]
262.
    [Time delta from previous displayed frame: 0.001421105 seconds]
263.
    [Time since reference or first frame: 0.001441518 seconds]
264.
    Frame Number: 3
265.
    Frame Length: 342 bytes (2736 bits)
266.
    Capture Length: 342 bytes (2736 bits)
267.
    [Frame is marked: False]
268.
    [Frame is ignored: False]
269.
    [Protocols in frame: eth:ethertype:ip:udp:bootp]
270.
    [Coloring Rule Name: UDP]
271.
    [Coloring Rule String: udp]
272.
Ethernet II, Src: Cisco_d1:b5:5c (b8:38:61:d1:b5:5c), Dst: Broadcast (ff:ff:ff:ff:ff:ff)
273.
    Destination: Broadcast (ff:ff:ff:ff:ff:ff)
274.
        Address: Broadcast (ff:ff:ff:ff:ff:ff)
275.
        .... ..1. .... .... .... .... = LG bit: Locally administered address (this is NOT the factory default)
276.
        .... ...1 .... .... .... .... = IG bit: Group address (multicast/broadcast)
277.
    Source: Cisco_d1:b5:5c (b8:38:61:d1:b5:5c)
278.
        Address: Cisco_d1:b5:5c (b8:38:61:d1:b5:5c)
279.
        .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)
280.
        .... ...0 .... .... .... .... = IG bit: Individual address (unicast)
281.
    Type: IPv4 (0x0800)
282.
Internet Protocol Version 4, Src: gateway (10.0.0.254), Dst: 255.255.255.255 (255.255.255.255)
283.
    0100 .... = Version: 4
284.
    .... 0101 = Header Length: 20 bytes (5)
285.
    Differentiated Services Field: 0x00 (DSCP: CS0, ECN: Not-ECT)
286.
        0000 00.. = Differentiated Services Codepoint: Default (0)
287.
        .... ..00 = Explicit Congestion Notification: Not ECN-Capable Transport (0)
288.
    Total Length: 328
289.
    Identification: 0x10be (4286)
290.
    Flags: 0x0000
291.
        0... .... .... .... = Reserved bit: Not set
292.
        .0.. .... .... .... = Don't fragment: Not set
293.
        ..0. .... .... .... = More fragments: Not set
294.
        ...0 0000 0000 0000 = Fragment offset: 0
295.
    Time to live: 255
296.
    Protocol: UDP (17)
297.
    Header checksum: 0x9ee9 [validation disabled]
298.
    [Header checksum status: Unverified]
299.
    Source: gateway (10.0.0.254)
300.
    Destination: 255.255.255.255 (255.255.255.255)
301.
User Datagram Protocol, Src Port: bootps (67), Dst Port: bootpc (68)
302.
    Source Port: bootps (67)
303.
    Destination Port: bootpc (68)
304.
    Length: 308
305.
    Checksum: 0xafd7 [unverified]
306.
    [Checksum Status: Unverified]
307.
    [Stream index: 1]
308.
Bootstrap Protocol (Offer)
309.
    Message type: Boot Reply (2)
310.
    Hardware type: Ethernet (0x01)
311.
    Hardware address length: 6
312.
    Hops: 0
313.
    Transaction ID: 0xa3ead968
314.
    Seconds elapsed: 0
315.
    Bootp flags: 0x8000, Broadcast flag (Broadcast)
316.
        1... .... .... .... = Broadcast flag: Broadcast
317.
        .000 0000 0000 0000 = Reserved flags: 0x0000
318.
    Client IP address: fr.a2dfp.net (0.0.0.0)
319.
    Your (client) IP address: 10.0.0.52 (10.0.0.52)
320.
    Next server IP address: fr.a2dfp.net (0.0.0.0)
321.
    Relay agent IP address: fr.a2dfp.net (0.0.0.0)
322.
    Client MAC address: Dell_ea:d9:68 (00:1a:a0:ea:d9:68)
323.
    Client hardware address padding: 00000000000000000000
324.
    Server host name not given
325.
    Boot file name not given
326.
    Magic cookie: DHCP
327.
    Option: (53) DHCP Message Type (Offer)
328.
        Length: 1
329.
        DHCP: Offer (2)
330.
    Option: (54) DHCP Server Identifier
331.
        Length: 4
332.
        DHCP Server Identifier: gateway (10.0.0.254)
333.
    Option: (51) IP Address Lease Time
334.
        Length: 4
335.
        IP Address Lease Time: (86196s) 23 hours, 56 minutes, 36 seconds
336.
    Option: (58) Renewal Time Value
337.
        Length: 4
338.
        Renewal Time Value: (43098s) 11 hours, 58 minutes, 18 seconds
339.
    Option: (59) Rebinding Time Value
340.
        Length: 4
341.
        Rebinding Time Value: (75418s) 20 hours, 56 minutes, 58 seconds
342.
    Option: (1) Subnet Mask
343.
        Length: 4
344.
        Subnet Mask: 255.255.255.0
345.
    Option: (3) Router
346.
        Length: 4
347.
        Router: gateway (10.0.0.254)
348.
    Option: (6) Domain Name Server
349.
        Length: 4
350.
        Domain Name Server: gateway (10.0.0.254)
351.
    Option: (67) Bootfile name
352.
        Length: 10
353.
        Bootfile name: pxelinux.0
354.
    Option: (255) End
355.
        Option End: 255
356.
    Padding: 0000
357.

358.
No.     Time           Source                Destination           Protocol Length Info
359.
      4 0.001453545    gateway               255.255.255.255       DHCP     342    DHCP Offer    - Transaction ID 0xa3ead968
360.

361.
Frame 4: 342 bytes on wire (2736 bits), 342 bytes captured (2736 bits) on interface 0
362.
    Interface id: 0 (bond0)
363.
        Interface name: bond0
364.
    Encapsulation type: Ethernet (1)
365.
    Arrival Time: Nov  8, 2018 14:58:44.741525201 CET
366.
    [Time shift for this packet: 0.000000000 seconds]
367.
    Epoch Time: 1541685524.741525201 seconds
368.
    [Time delta from previous captured frame: 0.000012027 seconds]
369.
    [Time delta from previous displayed frame: 0.000012027 seconds]
370.
    [Time since reference or first frame: 0.001453545 seconds]
371.
    Frame Number: 4
372.
    Frame Length: 342 bytes (2736 bits)
373.
    Capture Length: 342 bytes (2736 bits)
374.
    [Frame is marked: False]
375.
    [Frame is ignored: False]
376.
    [Protocols in frame: eth:ethertype:ip:udp:bootp]
377.
    [Coloring Rule Name: UDP]
378.
    [Coloring Rule String: udp]
379.
Ethernet II, Src: Cisco_d1:b5:5c (b8:38:61:d1:b5:5c), Dst: Broadcast (ff:ff:ff:ff:ff:ff)
380.
    Destination: Broadcast (ff:ff:ff:ff:ff:ff)
381.
        Address: Broadcast (ff:ff:ff:ff:ff:ff)
382.
        .... ..1. .... .... .... .... = LG bit: Locally administered address (this is NOT the factory default)
383.
        .... ...1 .... .... .... .... = IG bit: Group address (multicast/broadcast)
384.
    Source: Cisco_d1:b5:5c (b8:38:61:d1:b5:5c)
385.
        Address: Cisco_d1:b5:5c (b8:38:61:d1:b5:5c)
386.
        .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)
387.
        .... ...0 .... .... .... .... = IG bit: Individual address (unicast)
388.
    Type: IPv4 (0x0800)
389.
Internet Protocol Version 4, Src: gateway (10.0.0.254), Dst: 255.255.255.255 (255.255.255.255)
390.
    0100 .... = Version: 4
391.
    .... 0101 = Header Length: 20 bytes (5)
392.
    Differentiated Services Field: 0x00 (DSCP: CS0, ECN: Not-ECT)
393.
        0000 00.. = Differentiated Services Codepoint: Default (0)
394.
        .... ..00 = Explicit Congestion Notification: Not ECN-Capable Transport (0)
395.
    Total Length: 328
396.
    Identification: 0x10be (4286)
397.
    Flags: 0x0000
398.
        0... .... .... .... = Reserved bit: Not set
399.
        .0.. .... .... .... = Don't fragment: Not set
400.
        ..0. .... .... .... = More fragments: Not set
401.
        ...0 0000 0000 0000 = Fragment offset: 0
402.
    Time to live: 255
403.
    Protocol: UDP (17)
404.
    Header checksum: 0x9ee9 [validation disabled]
405.
    [Header checksum status: Unverified]
406.
    Source: gateway (10.0.0.254)
407.
    Destination: 255.255.255.255 (255.255.255.255)
408.
User Datagram Protocol, Src Port: bootps (67), Dst Port: bootpc (68)
409.
    Source Port: bootps (67)
410.
    Destination Port: bootpc (68)
411.
    Length: 308
412.
    Checksum: 0xafd7 [unverified]
413.
    [Checksum Status: Unverified]
414.
    [Stream index: 1]
415.
Bootstrap Protocol (Offer)
416.
    Message type: Boot Reply (2)
417.
    Hardware type: Ethernet (0x01)
418.
    Hardware address length: 6
419.
    Hops: 0
420.
    Transaction ID: 0xa3ead968
421.
    Seconds elapsed: 0
422.
    Bootp flags: 0x8000, Broadcast flag (Broadcast)
423.
        1... .... .... .... = Broadcast flag: Broadcast
424.
        .000 0000 0000 0000 = Reserved flags: 0x0000
425.
    Client IP address: fr.a2dfp.net (0.0.0.0)
426.
    Your (client) IP address: 10.0.0.52 (10.0.0.52)
427.
    Next server IP address: fr.a2dfp.net (0.0.0.0)
428.
    Relay agent IP address: fr.a2dfp.net (0.0.0.0)
429.
    Client MAC address: Dell_ea:d9:68 (00:1a:a0:ea:d9:68)
430.
    Client hardware address padding: 00000000000000000000
431.
    Server host name not given
432.
    Boot file name not given
433.
    Magic cookie: DHCP
434.
    Option: (53) DHCP Message Type (Offer)
435.
        Length: 1
436.
        DHCP: Offer (2)
437.
    Option: (54) DHCP Server Identifier
438.
        Length: 4
439.
        DHCP Server Identifier: gateway (10.0.0.254)
440.
    Option: (51) IP Address Lease Time
441.
        Length: 4
442.
        IP Address Lease Time: (86196s) 23 hours, 56 minutes, 36 seconds
443.
    Option: (58) Renewal Time Value
444.
        Length: 4
445.
        Renewal Time Value: (43098s) 11 hours, 58 minutes, 18 seconds
446.
    Option: (59) Rebinding Time Value
447.
        Length: 4
448.
        Rebinding Time Value: (75418s) 20 hours, 56 minutes, 58 seconds
449.
    Option: (1) Subnet Mask
450.
        Length: 4
451.
        Subnet Mask: 255.255.255.0
452.
    Option: (3) Router
453.
        Length: 4
454.
        Router: gateway (10.0.0.254)
455.
    Option: (6) Domain Name Server
456.
        Length: 4
457.
        Domain Name Server: gateway (10.0.0.254)
458.
    Option: (67) Bootfile name
459.
        Length: 10
460.
        Bootfile name: pxelinux.0
461.
    Option: (255) End
462.
        Option End: 255
463.
    Padding: 0000
464.

465.
No.     Time           Source                Destination           Protocol Length Info
466.
      5 4.064613182    fr.a2dfp.net          255.255.255.255       DHCP     590    DHCP Request  - Transaction ID 0xa3ead968
467.

468.
Frame 5: 590 bytes on wire (4720 bits), 590 bytes captured (4720 bits) on interface 0
469.
    Interface id: 0 (bond0)
470.
        Interface name: bond0
471.
    Encapsulation type: Ethernet (1)
472.
    Arrival Time: Nov  8, 2018 14:58:48.804684838 CET
473.
    [Time shift for this packet: 0.000000000 seconds]
474.
    Epoch Time: 1541685528.804684838 seconds
475.
    [Time delta from previous captured frame: 4.063159637 seconds]
476.
    [Time delta from previous displayed frame: 4.063159637 seconds]
477.
    [Time since reference or first frame: 4.064613182 seconds]
478.
    Frame Number: 5
479.
    Frame Length: 590 bytes (4720 bits)
480.
    Capture Length: 590 bytes (4720 bits)
481.
    [Frame is marked: False]
482.
    [Frame is ignored: False]
483.
    [Protocols in frame: eth:ethertype:ip:udp:bootp]
484.
    [Coloring Rule Name: UDP]
485.
    [Coloring Rule String: udp]
486.
Ethernet II, Src: Dell_ea:d9:68 (00:1a:a0:ea:d9:68), Dst: Broadcast (ff:ff:ff:ff:ff:ff)
487.
    Destination: Broadcast (ff:ff:ff:ff:ff:ff)
488.
        Address: Broadcast (ff:ff:ff:ff:ff:ff)
489.
        .... ..1. .... .... .... .... = LG bit: Locally administered address (this is NOT the factory default)
490.
        .... ...1 .... .... .... .... = IG bit: Group address (multicast/broadcast)
491.
    Source: Dell_ea:d9:68 (00:1a:a0:ea:d9:68)
492.
        Address: Dell_ea:d9:68 (00:1a:a0:ea:d9:68)
493.
        .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)
494.
        .... ...0 .... .... .... .... = IG bit: Individual address (unicast)
495.
    Type: IPv4 (0x0800)
496.
Internet Protocol Version 4, Src: fr.a2dfp.net (0.0.0.0), Dst: 255.255.255.255 (255.255.255.255)
497.
    0100 .... = Version: 4
498.
    .... 0101 = Header Length: 20 bytes (5)
499.
    Differentiated Services Field: 0x00 (DSCP: CS0, ECN: Not-ECT)
500.
        0000 00.. = Differentiated Services Codepoint: Default (0)
501.
        .... ..00 = Explicit Congestion Notification: Not ECN-Capable Transport (0)
502.
    Total Length: 576
503.
    Identification: 0x0003 (3)
504.
    Flags: 0x0000
505.
        0... .... .... .... = Reserved bit: Not set
506.
        .0.. .... .... .... = Don't fragment: Not set
507.
        ..0. .... .... .... = More fragments: Not set
508.
        ...0 0000 0000 0000 = Fragment offset: 0
509.
    Time to live: 20
510.
    Protocol: UDP (17)
511.
    Header checksum: 0xa4ab [validation disabled]
512.
    [Header checksum status: Unverified]
513.
    Source: fr.a2dfp.net (0.0.0.0)
514.
    Destination: 255.255.255.255 (255.255.255.255)
515.
User Datagram Protocol, Src Port: bootpc (68), Dst Port: bootps (67)
516.
    Source Port: bootpc (68)
517.
    Destination Port: bootps (67)
518.
    Length: 556
519.
    Checksum: 0x6b49 [unverified]
520.
    [Checksum Status: Unverified]
521.
    [Stream index: 0]
522.
Bootstrap Protocol (Request)
523.
    Message type: Boot Request (1)
524.
    Hardware type: Ethernet (0x01)
525.
    Hardware address length: 6
526.
    Hops: 0
527.
    Transaction ID: 0xa3ead968
528.
    Seconds elapsed: 16
529.
    Bootp flags: 0x8000, Broadcast flag (Broadcast)
530.
        1... .... .... .... = Broadcast flag: Broadcast
531.
        .000 0000 0000 0000 = Reserved flags: 0x0000
532.
    Client IP address: fr.a2dfp.net (0.0.0.0)
533.
    Your (client) IP address: fr.a2dfp.net (0.0.0.0)
534.
    Next server IP address: fr.a2dfp.net (0.0.0.0)
535.
    Relay agent IP address: fr.a2dfp.net (0.0.0.0)
536.
    Client MAC address: Dell_ea:d9:68 (00:1a:a0:ea:d9:68)
537.
    Client hardware address padding: 00000000000000000000
538.
    Server host name not given
539.
    Boot file name not given
540.
    Magic cookie: DHCP
541.
    Option: (53) DHCP Message Type (Request)
542.
        Length: 1
543.
        DHCP: Request (3)
544.
    Option: (50) Requested IP Address
545.
        Length: 4
546.
        Requested IP Address: 10.0.0.52 (10.0.0.52)
547.
    Option: (55) Parameter Request List
548.
        Length: 24
549.
        Parameter Request List Item: (1) Subnet Mask
550.
        Parameter Request List Item: (2) Time Offset
551.
        Parameter Request List Item: (3) Router
552.
        Parameter Request List Item: (5) Name Server
553.
        Parameter Request List Item: (6) Domain Name Server
554.
        Parameter Request List Item: (11) Resource Location Server
555.
        Parameter Request List Item: (12) Host Name
556.
        Parameter Request List Item: (13) Boot File Size
557.
        Parameter Request List Item: (15) Domain Name
558.
        Parameter Request List Item: (16) Swap Server
559.
        Parameter Request List Item: (17) Root Path
560.
        Parameter Request List Item: (18) Extensions Path
561.
        Parameter Request List Item: (43) Vendor-Specific Information
562.
        Parameter Request List Item: (54) DHCP Server Identifier
563.
        Parameter Request List Item: (60) Vendor class identifier
564.
        Parameter Request List Item: (67) Bootfile name
565.
        Parameter Request List Item: (128) DOCSIS full security server IP [TODO]
566.
        Parameter Request List Item: (129) PXE - undefined (vendor specific)
567.
        Parameter Request List Item: (130) PXE - undefined (vendor specific)
568.
        Parameter Request List Item: (131) PXE - undefined (vendor specific)
569.
        Parameter Request List Item: (132) PXE - undefined (vendor specific)
570.
        Parameter Request List Item: (133) PXE - undefined (vendor specific)
571.
        Parameter Request List Item: (134) PXE - undefined (vendor specific)
572.
        Parameter Request List Item: (135) PXE - undefined (vendor specific)
573.
    Option: (57) Maximum DHCP Message Size
574.
        Length: 2
575.
        Maximum DHCP Message Size: 1260
576.
    Option: (54) DHCP Server Identifier
577.
        Length: 4
578.
        DHCP Server Identifier: gateway (10.0.0.254)
579.
    Option: (97) UUID/GUID-based Client Identifier
580.
        Length: 17
581.
        Client Identifier (UUID): 4c4c4544-004d-3610-8034-b5c04f44334a
582.
    Option: (93) Client System Architecture
583.
        Length: 2
584.
        Client System Architecture: IA x86 PC (0)
585.
    Option: (94) Client Network Device Interface
586.
        Length: 3
587.
        Major Version: 2
588.
        Minor Version: 1
589.
    Option: (60) Vendor class identifier
590.
        Length: 32
591.
        Vendor class identifier: PXEClient:Arch:00000:UNDI:002001
592.
    Option: (255) End
593.
        Option End: 255
594.
    Padding: 000000000000000000000000000000000000000000000000...
595.

596.
No.     Time           Source                Destination           Protocol Length Info
597.
      6 4.064631738    fr.a2dfp.net          255.255.255.255       DHCP     590    DHCP Request  - Transaction ID 0xa3ead968
598.

599.
Frame 6: 590 bytes on wire (4720 bits), 590 bytes captured (4720 bits) on interface 0
600.
    Interface id: 0 (bond0)
601.
        Interface name: bond0
602.
    Encapsulation type: Ethernet (1)
603.
    Arrival Time: Nov  8, 2018 14:58:48.804703394 CET
604.
    [Time shift for this packet: 0.000000000 seconds]
605.
    Epoch Time: 1541685528.804703394 seconds
606.
    [Time delta from previous captured frame: 0.000018556 seconds]
607.
    [Time delta from previous displayed frame: 0.000018556 seconds]
608.
    [Time since reference or first frame: 4.064631738 seconds]
609.
    Frame Number: 6
610.
    Frame Length: 590 bytes (4720 bits)
611.
    Capture Length: 590 bytes (4720 bits)
612.
    [Frame is marked: False]
613.
    [Frame is ignored: False]
614.
    [Protocols in frame: eth:ethertype:ip:udp:bootp]
615.
    [Coloring Rule Name: UDP]
616.
    [Coloring Rule String: udp]
617.
Ethernet II, Src: Dell_ea:d9:68 (00:1a:a0:ea:d9:68), Dst: Broadcast (ff:ff:ff:ff:ff:ff)
618.
    Destination: Broadcast (ff:ff:ff:ff:ff:ff)
619.
        Address: Broadcast (ff:ff:ff:ff:ff:ff)
620.
        .... ..1. .... .... .... .... = LG bit: Locally administered address (this is NOT the factory default)
621.
        .... ...1 .... .... .... .... = IG bit: Group address (multicast/broadcast)
622.
    Source: Dell_ea:d9:68 (00:1a:a0:ea:d9:68)
623.
        Address: Dell_ea:d9:68 (00:1a:a0:ea:d9:68)
624.
        .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)
625.
        .... ...0 .... .... .... .... = IG bit: Individual address (unicast)
626.
    Type: IPv4 (0x0800)
627.
Internet Protocol Version 4, Src: fr.a2dfp.net (0.0.0.0), Dst: 255.255.255.255 (255.255.255.255)
628.
    0100 .... = Version: 4
629.
    .... 0101 = Header Length: 20 bytes (5)
630.
    Differentiated Services Field: 0x00 (DSCP: CS0, ECN: Not-ECT)
631.
        0000 00.. = Differentiated Services Codepoint: Default (0)
632.
        .... ..00 = Explicit Congestion Notification: Not ECN-Capable Transport (0)
633.
    Total Length: 576
634.
    Identification: 0x0003 (3)
635.
    Flags: 0x0000
636.
        0... .... .... .... = Reserved bit: Not set
637.
        .0.. .... .... .... = Don't fragment: Not set
638.
        ..0. .... .... .... = More fragments: Not set
639.
        ...0 0000 0000 0000 = Fragment offset: 0
640.
    Time to live: 20
641.
    Protocol: UDP (17)
642.
    Header checksum: 0xa4ab [validation disabled]
643.
    [Header checksum status: Unverified]
644.
    Source: fr.a2dfp.net (0.0.0.0)
645.
    Destination: 255.255.255.255 (255.255.255.255)
646.
User Datagram Protocol, Src Port: bootpc (68), Dst Port: bootps (67)
647.
    Source Port: bootpc (68)
648.
    Destination Port: bootps (67)
649.
    Length: 556
650.
    Checksum: 0x6b49 [unverified]
651.
    [Checksum Status: Unverified]
652.
    [Stream index: 0]
653.
Bootstrap Protocol (Request)
654.
    Message type: Boot Request (1)
655.
    Hardware type: Ethernet (0x01)
656.
    Hardware address length: 6
657.
    Hops: 0
658.
    Transaction ID: 0xa3ead968
659.
    Seconds elapsed: 16
660.
    Bootp flags: 0x8000, Broadcast flag (Broadcast)
661.
        1... .... .... .... = Broadcast flag: Broadcast
662.
        .000 0000 0000 0000 = Reserved flags: 0x0000
663.
    Client IP address: fr.a2dfp.net (0.0.0.0)
664.
    Your (client) IP address: fr.a2dfp.net (0.0.0.0)
665.
    Next server IP address: fr.a2dfp.net (0.0.0.0)
666.
    Relay agent IP address: fr.a2dfp.net (0.0.0.0)
667.
    Client MAC address: Dell_ea:d9:68 (00:1a:a0:ea:d9:68)
668.
    Client hardware address padding: 00000000000000000000
669.
    Server host name not given
670.
    Boot file name not given
671.
    Magic cookie: DHCP
672.
    Option: (53) DHCP Message Type (Request)
673.
        Length: 1
674.
        DHCP: Request (3)
675.
    Option: (50) Requested IP Address
676.
        Length: 4
677.
        Requested IP Address: 10.0.0.52 (10.0.0.52)
678.
    Option: (55) Parameter Request List
679.
        Length: 24
680.
        Parameter Request List Item: (1) Subnet Mask
681.
        Parameter Request List Item: (2) Time Offset
682.
        Parameter Request List Item: (3) Router
683.
        Parameter Request List Item: (5) Name Server
684.
        Parameter Request List Item: (6) Domain Name Server
685.
        Parameter Request List Item: (11) Resource Location Server
686.
        Parameter Request List Item: (12) Host Name
687.
        Parameter Request List Item: (13) Boot File Size
688.
        Parameter Request List Item: (15) Domain Name
689.
        Parameter Request List Item: (16) Swap Server
690.
        Parameter Request List Item: (17) Root Path
691.
        Parameter Request List Item: (18) Extensions Path
692.
        Parameter Request List Item: (43) Vendor-Specific Information
693.
        Parameter Request List Item: (54) DHCP Server Identifier
694.
        Parameter Request List Item: (60) Vendor class identifier
695.
        Parameter Request List Item: (67) Bootfile name
696.
        Parameter Request List Item: (128) DOCSIS full security server IP [TODO]
697.
        Parameter Request List Item: (129) PXE - undefined (vendor specific)
698.
        Parameter Request List Item: (130) PXE - undefined (vendor specific)
699.
        Parameter Request List Item: (131) PXE - undefined (vendor specific)
700.
        Parameter Request List Item: (132) PXE - undefined (vendor specific)
701.
        Parameter Request List Item: (133) PXE - undefined (vendor specific)
702.
        Parameter Request List Item: (134) PXE - undefined (vendor specific)
703.
        Parameter Request List Item: (135) PXE - undefined (vendor specific)
704.
    Option: (57) Maximum DHCP Message Size
705.
        Length: 2
706.
        Maximum DHCP Message Size: 1260
707.
    Option: (54) DHCP Server Identifier
708.
        Length: 4
709.
        DHCP Server Identifier: gateway (10.0.0.254)
710.
    Option: (97) UUID/GUID-based Client Identifier
711.
        Length: 17
712.
        Client Identifier (UUID): 4c4c4544-004d-3610-8034-b5c04f44334a
713.
    Option: (93) Client System Architecture
714.
        Length: 2
715.
        Client System Architecture: IA x86 PC (0)
716.
    Option: (94) Client Network Device Interface
717.
        Length: 3
718.
        Major Version: 2
719.
        Minor Version: 1
720.
    Option: (60) Vendor class identifier
721.
        Length: 32
722.
        Vendor class identifier: PXEClient:Arch:00000:UNDI:002001
723.
    Option: (255) End
724.
        Option End: 255
725.
    Padding: 000000000000000000000000000000000000000000000000...
726.

727.
No.     Time           Source                Destination           Protocol Length Info
728.
      7 4.065832227    gateway               255.255.255.255       DHCP     342    DHCP ACK      - Transaction ID 0xa3ead968
729.

730.
Frame 7: 342 bytes on wire (2736 bits), 342 bytes captured (2736 bits) on interface 0
731.
    Interface id: 0 (bond0)
732.
        Interface name: bond0
733.
    Encapsulation type: Ethernet (1)
734.
    Arrival Time: Nov  8, 2018 14:58:48.805903883 CET
735.
    [Time shift for this packet: 0.000000000 seconds]
736.
    Epoch Time: 1541685528.805903883 seconds
737.
    [Time delta from previous captured frame: 0.001200489 seconds]
738.
    [Time delta from previous displayed frame: 0.001200489 seconds]
739.
    [Time since reference or first frame: 4.065832227 seconds]
740.
    Frame Number: 7
741.
    Frame Length: 342 bytes (2736 bits)
742.
    Capture Length: 342 bytes (2736 bits)
743.
    [Frame is marked: False]
744.
    [Frame is ignored: False]
745.
    [Protocols in frame: eth:ethertype:ip:udp:bootp]
746.
    [Coloring Rule Name: UDP]
747.
    [Coloring Rule String: udp]
748.
Ethernet II, Src: Cisco_d1:b5:5c (b8:38:61:d1:b5:5c), Dst: Broadcast (ff:ff:ff:ff:ff:ff)
749.
    Destination: Broadcast (ff:ff:ff:ff:ff:ff)
750.
        Address: Broadcast (ff:ff:ff:ff:ff:ff)
751.
        .... ..1. .... .... .... .... = LG bit: Locally administered address (this is NOT the factory default)
752.
        .... ...1 .... .... .... .... = IG bit: Group address (multicast/broadcast)
753.
    Source: Cisco_d1:b5:5c (b8:38:61:d1:b5:5c)
754.
        Address: Cisco_d1:b5:5c (b8:38:61:d1:b5:5c)
755.
        .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)
756.
        .... ...0 .... .... .... .... = IG bit: Individual address (unicast)
757.
    Type: IPv4 (0x0800)
758.
Internet Protocol Version 4, Src: gateway (10.0.0.254), Dst: 255.255.255.255 (255.255.255.255)
759.
    0100 .... = Version: 4
760.
    .... 0101 = Header Length: 20 bytes (5)
761.
    Differentiated Services Field: 0x00 (DSCP: CS0, ECN: Not-ECT)
762.
        0000 00.. = Differentiated Services Codepoint: Default (0)
763.
        .... ..00 = Explicit Congestion Notification: Not ECN-Capable Transport (0)
764.
    Total Length: 328
765.
    Identification: 0x10bf (4287)
766.
    Flags: 0x0000
767.
        0... .... .... .... = Reserved bit: Not set
768.
        .0.. .... .... .... = Don't fragment: Not set
769.
        ..0. .... .... .... = More fragments: Not set
770.
        ...0 0000 0000 0000 = Fragment offset: 0
771.
    Time to live: 255
772.
    Protocol: UDP (17)
773.
    Header checksum: 0x9ee8 [validation disabled]
774.
    [Header checksum status: Unverified]
775.
    Source: gateway (10.0.0.254)
776.
    Destination: 255.255.255.255 (255.255.255.255)
777.
User Datagram Protocol, Src Port: bootps (67), Dst Port: bootpc (68)
778.
    Source Port: bootps (67)
779.
    Destination Port: bootpc (68)
780.
    Length: 308
781.
    Checksum: 0xc4d5 [unverified]
782.
    [Checksum Status: Unverified]
783.
    [Stream index: 1]
784.
Bootstrap Protocol (ACK)
785.
    Message type: Boot Reply (2)
786.
    Hardware type: Ethernet (0x01)
787.
    Hardware address length: 6
788.
    Hops: 0
789.
    Transaction ID: 0xa3ead968
790.
    Seconds elapsed: 0
791.
    Bootp flags: 0x8000, Broadcast flag (Broadcast)
792.
        1... .... .... .... = Broadcast flag: Broadcast
793.
        .000 0000 0000 0000 = Reserved flags: 0x0000
794.
    Client IP address: fr.a2dfp.net (0.0.0.0)
795.
    Your (client) IP address: 10.0.0.52 (10.0.0.52)
796.
    Next server IP address: fr.a2dfp.net (0.0.0.0)
797.
    Relay agent IP address: fr.a2dfp.net (0.0.0.0)
798.
    Client MAC address: Dell_ea:d9:68 (00:1a:a0:ea:d9:68)
799.
    Client hardware address padding: 00000000000000000000
800.
    Server host name not given
801.
    Boot file name not given
802.
    Magic cookie: DHCP
803.
    Option: (53) DHCP Message Type (ACK)
804.
        Length: 1
805.
        DHCP: ACK (5)
806.
    Option: (54) DHCP Server Identifier
807.
        Length: 4
808.
        DHCP Server Identifier: gateway (10.0.0.254)
809.
    Option: (51) IP Address Lease Time
810.
        Length: 4
811.
        IP Address Lease Time: (86400s) 1 day
812.
    Option: (58) Renewal Time Value
813.
        Length: 4
814.
        Renewal Time Value: (43200s) 12 hours
815.
    Option: (59) Rebinding Time Value
816.
        Length: 4
817.
        Rebinding Time Value: (75600s) 21 hours
818.
    Option: (1) Subnet Mask
819.
        Length: 4
820.
        Subnet Mask: 255.255.255.0
821.
    Option: (3) Router
822.
        Length: 4
823.
        Router: gateway (10.0.0.254)
824.
    Option: (6) Domain Name Server
825.
        Length: 4
826.
        Domain Name Server: gateway (10.0.0.254)
827.
    Option: (67) Bootfile name
828.
        Length: 10
829.
        Bootfile name: pxelinux.0
830.
    Option: (255) End
831.
        Option End: 255
832.
    Padding: 0000
833.

834.
No.     Time           Source                Destination           Protocol Length Info
835.
      8 4.065844424    gateway               255.255.255.255       DHCP     342    DHCP ACK      - Transaction ID 0xa3ead968
836.

837.
Frame 8: 342 bytes on wire (2736 bits), 342 bytes captured (2736 bits) on interface 0
838.
    Interface id: 0 (bond0)
839.
        Interface name: bond0
840.
    Encapsulation type: Ethernet (1)
841.
    Arrival Time: Nov  8, 2018 14:58:48.805916080 CET
842.
    [Time shift for this packet: 0.000000000 seconds]
843.
    Epoch Time: 1541685528.805916080 seconds
844.
    [Time delta from previous captured frame: 0.000012197 seconds]
845.
    [Time delta from previous displayed frame: 0.000012197 seconds]
846.
    [Time since reference or first frame: 4.065844424 seconds]
847.
    Frame Number: 8
848.
    Frame Length: 342 bytes (2736 bits)
849.
    Capture Length: 342 bytes (2736 bits)
850.
    [Frame is marked: False]
851.
    [Frame is ignored: False]
852.
    [Protocols in frame: eth:ethertype:ip:udp:bootp]
853.
    [Coloring Rule Name: UDP]
854.
    [Coloring Rule String: udp]
855.
Ethernet II, Src: Cisco_d1:b5:5c (b8:38:61:d1:b5:5c), Dst: Broadcast (ff:ff:ff:ff:ff:ff)
856.
    Destination: Broadcast (ff:ff:ff:ff:ff:ff)
857.
        Address: Broadcast (ff:ff:ff:ff:ff:ff)
858.
        .... ..1. .... .... .... .... = LG bit: Locally administered address (this is NOT the factory default)
859.
        .... ...1 .... .... .... .... = IG bit: Group address (multicast/broadcast)
860.
    Source: Cisco_d1:b5:5c (b8:38:61:d1:b5:5c)
861.
        Address: Cisco_d1:b5:5c (b8:38:61:d1:b5:5c)
862.
        .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)
863.
        .... ...0 .... .... .... .... = IG bit: Individual address (unicast)
864.
    Type: IPv4 (0x0800)
865.
Internet Protocol Version 4, Src: gateway (10.0.0.254), Dst: 255.255.255.255 (255.255.255.255)
866.
    0100 .... = Version: 4
867.
    .... 0101 = Header Length: 20 bytes (5)
868.
    Differentiated Services Field: 0x00 (DSCP: CS0, ECN: Not-ECT)
869.
        0000 00.. = Differentiated Services Codepoint: Default (0)
870.
        .... ..00 = Explicit Congestion Notification: Not ECN-Capable Transport (0)
871.
    Total Length: 328
872.
    Identification: 0x10bf (4287)
873.
    Flags: 0x0000
874.
        0... .... .... .... = Reserved bit: Not set
875.
        .0.. .... .... .... = Don't fragment: Not set
876.
        ..0. .... .... .... = More fragments: Not set
877.
        ...0 0000 0000 0000 = Fragment offset: 0
878.
    Time to live: 255
879.
    Protocol: UDP (17)
880.
    Header checksum: 0x9ee8 [validation disabled]
881.
    [Header checksum status: Unverified]
882.
    Source: gateway (10.0.0.254)
883.
    Destination: 255.255.255.255 (255.255.255.255)
884.
User Datagram Protocol, Src Port: bootps (67), Dst Port: bootpc (68)
885.
    Source Port: bootps (67)
886.
    Destination Port: bootpc (68)
887.
    Length: 308
888.
    Checksum: 0xc4d5 [unverified]
889.
    [Checksum Status: Unverified]
890.
    [Stream index: 1]
891.
Bootstrap Protocol (ACK)
892.
    Message type: Boot Reply (2)
893.
    Hardware type: Ethernet (0x01)
894.
    Hardware address length: 6
895.
    Hops: 0
896.
    Transaction ID: 0xa3ead968
897.
    Seconds elapsed: 0
898.
    Bootp flags: 0x8000, Broadcast flag (Broadcast)
899.
        1... .... .... .... = Broadcast flag: Broadcast
900.
        .000 0000 0000 0000 = Reserved flags: 0x0000
901.
    Client IP address: fr.a2dfp.net (0.0.0.0)
902.
    Your (client) IP address: 10.0.0.52 (10.0.0.52)
903.
    Next server IP address: fr.a2dfp.net (0.0.0.0)
904.
    Relay agent IP address: fr.a2dfp.net (0.0.0.0)
905.
    Client MAC address: Dell_ea:d9:68 (00:1a:a0:ea:d9:68)
906.
    Client hardware address padding: 00000000000000000000
907.
    Server host name not given
908.
    Boot file name not given
909.
    Magic cookie: DHCP
910.
    Option: (53) DHCP Message Type (ACK)
911.
        Length: 1
912.
        DHCP: ACK (5)
913.
    Option: (54) DHCP Server Identifier
914.
        Length: 4
915.
        DHCP Server Identifier: gateway (10.0.0.254)
916.
    Option: (51) IP Address Lease Time
917.
        Length: 4
918.
        IP Address Lease Time: (86400s) 1 day
919.
    Option: (58) Renewal Time Value
920.
        Length: 4
921.
        Renewal Time Value: (43200s) 12 hours
922.
    Option: (59) Rebinding Time Value
923.
        Length: 4
924.
        Rebinding Time Value: (75600s) 21 hours
925.
    Option: (1) Subnet Mask
926.
        Length: 4
927.
        Subnet Mask: 255.255.255.0
928.
    Option: (3) Router
929.
        Length: 4
930.
        Router: gateway (10.0.0.254)
931.
    Option: (6) Domain Name Server
932.
        Length: 4
933.
        Domain Name Server: gateway (10.0.0.254)
934.
    Option: (67) Bootfile name
935.
        Length: 10
936.
        Bootfile name: pxelinux.0
937.
    Option: (255) End
938.
        Option End: 255
939.
    Padding: 0000
Bitte warten ..
Mitglied: Windows10Gegner
08.11.2018 um 20:49 Uhr
Es hat wohl geklappt, siehe Scheint geklappt zu haben, siehe https://www.administrator.de/content/detail.php?id=391793&token=126# ...
Bitte warten ..
Mitglied: aqui
09.11.2018, aktualisiert um 14:15 Uhr
Könnte, sollte, hätte...zuviel Konjunktiv und mit dem Link kann man nicht wirklich was anfangen
Der führt auf ein Ubuntu Net Install Image. Dafür ist natürlich kein TFTP Boot erforderlich, denn das lädt das Install Image stinknormal über das Internet !
Bleibt die Frage: Klappts oder klappts nicht ?
Bitte warten ..
Mitglied: Windows10Gegner
09.11.2018 um 14:51 Uhr
Die notwendigen Daten für den Netinstall werden per TFTP gezogen, wenn ich über PXE boote.
Das DHCP-Problem ist gelöst, jetzt muss ich noch hinkriegen, dass ich die Live-CDs boten kann.
Das findet im anderen Thread statt.
Danke für die Hilfe hier.
Bitte warten ..
Mitglied: aqui
09.11.2018, aktualisiert um 16:26 Uhr
Das DHCP-Problem ist gelöst,
Verrätst du uns auch noch was der entscheidende Punkt in der DHCP Konfig war ?! Wäre ja hilfreich für andere denn Live CDs booten via PXE ist ja doch recht interessant.
Mit einem Windows Recovery System wie das der ct' funktioniert es auch.
https://www.heise.de/ct/ausgabe/2018-22-Im-Handumdrehen-ein-Notfallsyste ...
Bitte warten ..
Mitglied: Windows10Gegner
09.11.2018 um 17:58 Uhr
01.
ip dhcp pool lokales-netz
02.
 network 10.0.0.0 255.255.255.0
03.
 bootfile pxelinux.0
04.
 next-server 10.0.0.115 
05.
 default-router 10.0.0.254 
06.
 option 42 ip 130.149.17.8 
07.
 dns-server 10.0.0.254 
08.
 option 67 ascii pxelinux.0
funktioniert. Man könnte noch testen ob bootfile oder option 67 das Ganze regeln.
Bitte warten ..
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