ath0/eth0 setup

[bruce]

hi.

my bad for posting this, as i had it working awhile ago, and i can't find my
notes...


I have a system with a wire/wireless connection (eth0/ath0).

the ath0 is used to connect the rest of my network, via wireless. ath0 is
set to be 192.168.1.12 as the subnet of the network is 1.x.

the etho is set to be a separate sub, and i can ping both ath0/eth0 from the
system.

so,
  ping 192.168.1.12 (ath0) works,
  ping 192.168.2.12 (eth0) works,
if i'm on the same system.

if i try to ping the ath0/eth0 from another box in my system, i have an
issue.

  from sys2 - ping 192.168.1.12 (ath0) works,
  from sys2 - ping 192.168.2.12 (eth0) doesn't work

sys2 is on the 1.x subnet.

so... i'm trying to figure out what i need to do to allow this to occur. i'm
pretty sure that there's some iptables/route cmd that i can implement to get
this to work, but i'm not sure what...

i've tried various takes on iptables, but haven't quite got it right!!

thanks