[K12OSN] The Dreaded DHCP on port 1067

cliebow at midmaine.com cliebow at midmaine.com
Fri Dec 22 21:02:04 UTC 2006


did you appy option 128/9 to tell the kernel to look for dhcp on 1067 at
second dhcp inquiry? i use 1001/2 on my networks with proma and flopps

> Hello,
>
> I've been fighting with my LTSP server for a long while now, and I could
> use some advice.  My school is such that I can't put the thin clients on
> their own hub/switch... instead I need to share the LAN with another DHCP
> server.  With this in mind, I have:
>
> (1)  Set up the server to use DHCP port 1067 (following directions to make
> this work in dhcpd.conf and dhcpd files.
> (2)  Set up the etherboot floppies correctly to look for port 1067.  I
> want to use floppys so I can use the machines "normally" as Win95
> machines, or with LTSP at the drop of a floppy.
>
> The clients seem to make the first DHCP request OK, and everything is fine
> until later in the game (and much screen activity later) when I see
> "Running DHCPD on port 67" and then "Kernel Panic".  This is after IPs
> have been picked up, etc.
>
> Another added issue is that use of "ethtool" shows me that one NIC is in
> full duplex mode, while the second is in half duplex mode.  I think I've
> solved this by adding the following commands to /etc/rc.local:
>
> ethtool -s eth1 speed 100 duplex full autoneg off
> ethtool -s eth0 speed 100 duplex full autoneg off
>
> Checking eth0 and eth1 after these commands are executed shows them both
> in the same mode.
>
> Anyway, any help would be appreciated in getting DHCP to STAY with port
> 1067.
>
> Dan
> PS:  Here is some command window output in case it is useful:
>
> Settings for eth0:
>         Supported ports: [ TP MII ]
>         Supported link modes:   10baseT/Half 10baseT/Full
>                                 100baseT/Half 100baseT/Full
>         Supports auto-negotiation: Yes
>         Advertised link modes:  10baseT/Half 10baseT/Full
>                                 100baseT/Half 100baseT/Full
>         Advertised auto-negotiation: No
>         Speed: 100Mb/s
>         Duplex: Full
>         Port: MII
>         PHYAD: 24
>         Transceiver: internal
>         Auto-negotiation: off
>         Current message level: 0x00000001 (1)
>         Link detected: yes
> [root at ELD-0506-LT01 ~]# ethtool eth1
> Settings for eth1:
>         Supported ports: [ MII ]
>         Supported link modes:   10baseT/Half 10baseT/Full
>                                 100baseT/Half 100baseT/Full
>
>
>
> eth0      Link encap:Ethernet  HWaddr 00:01:02:FD:35:98
>           inet addr:10.11.150.6  Bcast:10.11.150.255  Mask:255.255.255.0
>           inet6 addr: fe80::201:2ff:fefd:3598/64 Scope:Link
>           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>           RX packets:175637 errors:0 dropped:0 overruns:1 frame:0
>           TX packets:31873 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:1000
>           RX bytes:16627274 (15.8 MiB)  TX bytes:41815631 (39.8 MiB)
>           Interrupt:50 Base address:0x4f80
>
> eth1      Link encap:Ethernet  HWaddr 00:13:72:9D:D6:4E
>           inet addr:10.11.150.5  Bcast:10.11.150.255  Mask:255.255.255.0
>           inet6 addr: fe80::213:72ff:fe9d:d64e/64 Scope:Link
>           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>           RX packets:64355 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:85 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:6 txqueuelen:1000
>           RX bytes:5365069 (5.1 MiB)  TX bytes:16208 (15.8 KiB)
>           Interrupt:169
>
> lo        Link encap:Local Loopback
>           inet addr:127.0.0.1  Mask:255.0.0.0
>           inet6 addr: ::1/128 Scope:Host
>           UP LOOPBACK RUNNING  MTU:16436  Metric:1
>           RX packets:2570 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:2570 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:0
>           RX bytes:3874647 (3.6 MiB)  TX bytes:3874647 (3.6 MiB)
>
>                                 1000baseT/Half 1000baseT/Full
>         Supports auto-negotiation: Yes
>         Advertised link modes:  Not reported
>         Advertised auto-negotiation: No
>         Speed: 100Mb/s
>         Duplex: Full
>         Port: Twisted Pair
>         PHYAD: 1
>         Transceiver: internal
>         Auto-negotiation: off
>         Supports Wake-on: g
>         Wake-on: d
>         Current message level: 0x000000ff (255)
>         Link detected: yes
>
>
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