[syslinux] Cannot chain to another PXE server on the same subnet
Vieri
rentorbuy at yahoo.com
Wed Mar 5 04:28:52 PST 2014
This is what I'm seeing on my DHCP server:
# tcpdump -i eth0 -vvv -s 1500 '(port 67 or port 68)'
tcpdump: listening on eth0, link-type EN10MB (Ethernet), capture size 1500 bytes
13:24:05.679950 IP (tos 0x0, ttl 20, id 0, offset 0, flags [none], proto: UDP (17), length: 576) 0.0.0.0.bootpc > 255.255.255.255.bootps: [udp sum ok] BOOTP/DHCP, Request from 00:24:54:d9:d4:2f (oui Unknown), length 548, xid 0x55d9d42f, secs 4, Flags [ Broadcast ] (0x8000)
Client-Ethernet-Address 00:24:54:d9:d4:2f (oui Unknown)
Vendor-rfc1048 Extensions
Magic Cookie 0x63825363
DHCP-Message Option 53, length 1: Discover
Parameter-Request Option 55, length 24:
Subnet-Mask, Time-Zone, Default-Gateway, IEN-Name-Server
Domain-Name-Server, RL, Hostname, BS
Domain-Name, SS, RP, EP
Vendor-Option, Server-ID, Vendor-Class, BF
Option 128, Option 129, Option 130, Option 131
Option 132, Option 133, Option 134, Option 135
MSZ Option 57, length 2: 1260
GUID Option 97, length 17: 0.0.12.143.150.232.29.178.17.128.0.154.39.8.20.171.64
ARCH Option 93, length 2: 0
NDI Option 94, length 3: 1.2.1
Vendor-Class Option 60, length 32: "PXEClient:Arch:00000:UNDI:002001"
13:24:05.680362 IP (tos 0x10, ttl 16, id 0, offset 0, flags [none], proto: UDP (17), length: 328) 10.215.144.7.bootps > 255.255.255.255.bootpc: [udp sum ok] BOOTP/DHCP, Reply, length 300, xid 0x55d9d42f, secs 4, Flags [ Broadcast ] (0x8000)
Your-IP 10.215.145.94
Client-Ethernet-Address 00:24:54:d9:d4:2f (oui Unknown)
Vendor-rfc1048 Extensions
Magic Cookie 0x63825363
DHCP-Message Option 53, length 1: Offer
Server-ID Option 54, length 4: 10.215.144.7
Lease-Time Option 51, length 4: 86400
Subnet-Mask Option 1, length 4: 255.255.0.0
Default-Gateway Option 3, length 4: 10.215.144.91
Domain-Name-Server Option 6, length 8: 10.215.144.31,10.215.144.35
Domain-Name Option 15, length 19: "mydomain.org"
13:24:05.690690 IP (tos 0x0, ttl 128, id 9218, offset 0, flags [none], proto: UDP (17), length: 726) 10.215.144.60.bootps > 255.255.255.255.bootpc: [udp sum ok] BOOTP/DHCP, Reply, length 698, xid 0x55d9d42f, secs 4, Flags [ Broadcast ] (0x8000)
Server-IP 10.215.144.60
Client-Ethernet-Address 00:24:54:d9:d4:2f (oui Unknown)
sname "INF-VM-DS"
file "Bstrap\X86PC\BStrap.0"
Vendor-rfc1048 Extensions
Magic Cookie 0x63825363
BS Option 13, length 2: 46
DHCP-Message Option 53, length 1: Offer
Server-ID Option 54, length 4: 10.215.144.60
Vendor-Class Option 60, length 9: "PXEClient"
ARCH Option 93, length 2: 0
GUID Option 97, length 17: 0.0.12.143.150.232.29.178.17.128.0.154.39.8.20.171.64
Vendor-Option Option 43, length 138: 1.4.224.1.1.3.2.2.222.6.3.2.223.6.4.1.1.5.1.1.6.1.11.8.112.170.170.1.10.215.144.60.0.160.1.10.215.144.60.0.129.1.10.215.144.60.0.161.1.10.215.144.60.0.162.1.10.215.144.60.0.164.1.10.215.144.60.0.165.1.10.215.144.60.0.166.1.10.215.144.60.0.167.1.10.215.144.60.0.168.1.10.215.144.60.0.169.1.10.215.144.60.0.170.1.10.215.144.60.0.171.1.10.215.144.60.0.172.1.10.215.144.60.0.131.1.10.215.144.60.187.187.1.10.215.144.60.255
Vendor-Option Option 43, length 254: 9.203.0.0.22.78.101.120.116.32.68.101.118.105.99.101.32.40.66.73.79.83.47.69.70.73.41.0.160.12.85.98.117.110.116.117.78.101.116.120.56.54.0.129.8.68.79.83.32.85.78.68.73.0.161.12.72.80.32.100.99.55.56.48.48.83.70.70.0.162.11.68.101.108.108.32.79.112.116.51.54.48.0.164.11.71.88.53.50.48.38.71.88.54.50.48.0.165.22.66.114.111.97.100.78.101.116.88.116.114.101.109.101.32.73.73.32.71.105.103.97.0.166.17.68.101.108.108.79.112.116.71.88.54.48.32.69.49.48.48.98.0.167.14.68.114.97.103.101.114.32.82.84.76.56.49.51.57.0.168.5.108.105.110.117.120.0.170.6.118.109.119.97.114.101.0.171.10.72.80.56.48.48.48.69.83.70.70.0.172.6.68.101.108.108.80.69.0.131.5.87.105.110.80.69.10.46.5.80.114.101.115.115.32.91.70.56.93.32.116.111.32.83.101.108.101.99.116.32.97.32.98.111.111.116.32.111.112.116.105.111.110.58.32.73.78.70.45.86.77.45.68.83.255
Vendor-Option Option 43, length 11: 71.4.0.0.0.0.224.2.0.0.255
13:24:09.799154 IP (tos 0x0, ttl 20, id 1, offset 0, flags [none], proto: UDP (17), length: 576) 0.0.0.0.bootpc > 255.255.255.255.bootps: [udp sum ok] BOOTP/DHCP, Request from 00:24:54:d9:d4:2f (oui Unknown), length 548, xid 0x55d9d42f, secs 4, Flags [ Broadcast ] (0x8000)
Client-Ethernet-Address 00:24:54:d9:d4:2f (oui Unknown)
Vendor-rfc1048 Extensions
Magic Cookie 0x63825363
DHCP-Message Option 53, length 1: Request
Requested-IP Option 50, length 4: 10.215.145.94
Parameter-Request Option 55, length 24:
Subnet-Mask, Time-Zone, Default-Gateway, IEN-Name-Server
Domain-Name-Server, RL, Hostname, BS
Domain-Name, SS, RP, EP
Vendor-Option, Server-ID, Vendor-Class, BF
Option 128, Option 129, Option 130, Option 131
Option 132, Option 133, Option 134, Option 135
MSZ Option 57, length 2: 1260
Server-ID Option 54, length 4: 10.215.144.7
GUID Option 97, length 17: 0.0.12.143.150.232.29.178.17.128.0.154.39.8.20.171.64
ARCH Option 93, length 2: 0
NDI Option 94, length 3: 1.2.1
Vendor-Class Option 60, length 32: "PXEClient:Arch:00000:UNDI:002001"
13:24:09.799481 IP (tos 0x10, ttl 16, id 0, offset 0, flags [none], proto: UDP (17), length: 328) 10.215.144.7.bootps > 255.255.255.255.bootpc: [udp sum ok] BOOTP/DHCP, Reply, length 300, xid 0x55d9d42f, secs 4, Flags [ Broadcast ] (0x8000)
Your-IP 10.215.145.94
Client-Ethernet-Address 00:24:54:d9:d4:2f (oui Unknown)
Vendor-rfc1048 Extensions
Magic Cookie 0x63825363
DHCP-Message Option 53, length 1: ACK
Server-ID Option 54, length 4: 10.215.144.7
Lease-Time Option 51, length 4: 86400
Subnet-Mask Option 1, length 4: 255.255.0.0
Default-Gateway Option 3, length 4: 10.215.144.91
Domain-Name-Server Option 6, length 8: 10.215.144.31,10.215.144.35
Domain-Name Option 15, length 19: "mydomain.org"
So the "filename" for 10.215.144.60 should be correct.
Vieri
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