[plug] IP Routing Problem on Linux Box

[Richard Mortimer]

Greetings All,

We are experiencing a problem with our Linux box which appears to be unusual 
to say the least.

iiNet have originally set up our two boxes which are acting in this manner:

   Internet ---- Router ---- Bastion ----- Proxy ------ Our Network
    iinet   64k

We are trying to add some PC's and various devices on our network under a 
10.1.x.x, but when adding:

route add -net 10.1.0.0 netmask 255.255.0.0 gw 203.20.99.99
                                               ^^(this is a real router, but 
IP changed
                                                   for this post)

it crashes our email server (running Connect2 on a seperate machine) and 
gives a series of errors about eth0 timing out (eth0: transmit timed out, 
Tx_status 00 status 2000 tx FIFO room 3068) on both the bastion and proxy.

The outputs from an ipconfig are as follow:

Proxy:
>lo        Link encap:Local Loopback
>          inet addr:127.0.0.1  Bcast:127.255.255.255  Mask:255.0.0.0
>          UP BROADCAST LOOPBACK RUNNING  MTU:3584  Metric:1
>          RX packets:707 errors:0 dropped:0 overruns:0
>          TX packets:707 errors:0 dropped:0 overruns:0
>
>eth0      Link encap:10Mbps Ethernet  HWaddr 00:60:97:03:6A:A4
>          inet addr:203.20.82.42  Bcast:203.20.82.255  Mask:255.255.255.0
>          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>          RX packets:300232 errors:0 dropped:0 overruns:0
>          TX packets:469162 errors:1 dropped:0 overruns:0
>          Interrupt:5 Base address:0x320

Bastion:
>lo        Link encap:Local Loopback
>          inet addr:127.0.0.1  Bcast:127.255.255.255  Mask:255.0.0.0
>          UP BROADCAST LOOPBACK RUNNING  MTU:3584  Metric:1
>          RX packets:0 errors:0 dropped:0 overruns:0
>          TX packets:0 errors:0 dropped:0 overruns:0
>
>eth0      Link encap:10Mbps Ethernet  HWaddr 00:60:97:03:60:A0
>          inet addr:203.20.82.9  Bcast:203.20.82.255  Mask:255.255.255.0
>          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>          RX packets:251181 errors:0 dropped:0 overruns:0
>          TX packets:140214 errors:0 dropped:0 overruns:0
>          Interrupt:5 Base address:0x280
>
>eth1      Link encap:10Mbps Ethernet  HWaddr 00:60:97:03:6A:3F
>          inet addr:203.20.82.9  Bcast:203.20.82.255  Mask:255.255.255.0
>          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>          RX packets:28754 errors:0 dropped:0 overruns:0
>          TX packets:246792 errors:0 dropped:0 overruns:0
>          Interrupt:10 Base address:0x300

Can anyone cast their eyes over this and see if there is anything obvious 
that stands out as to why this is causing an error; added a subnet in this 
manner shouldn't be causing problems as far as I can see?

The problem has been reported to iiNet, but they have taken over two weeks 
to look at this and I still haven't heard *any* feedback from them apart 
from one call asking for passwords.

Any suggestions would be appreciated.


Thanks

Richard Mortimer
IT Services
City of Melville