I've come across an
issue I just don't know how to solve. I'm not even certain it's an issue with
iptables itself, but I thought that someone here might have run across this
before and have some advice.
I've got a RH7.3 box
set up with two NICs. Eth0 is external and eth1 is internal. Internal network is
192.168.1.* with netmask 255.255.255.128. I need to forward traffic on eth0,
port 25 to 192.168.1.29. The firewall is 192.168.1.1 - both in the same subnet
as I understand it.
When I forward SMTP
traffic to 192.168.1.29 and try to telnet to port 25 to test SMTP, it just sits
there, unresponsive. BUT, if I forward eth0 port 25 traffic to a machine out on
the internet, it works just fine.
I suspect a
networking problem, but I don't know well enough to pin it down
myself.
-T
