[TriLUG] routing help

[Greg Brown]

I had Roadrunner installed today and I can't get routing to work.  My
"network" looks something like the following:

1. cable modem connected to eth0 (3c905)
2. eth0 is configured for DHCP (and is able to get an IP address - and I
can surf the web from my linux box)
3. eth1 is configured as 10.1.1.254 (and is the default gateway of all my
home machines)
4. netcfg has been run and I have set the "default gateway device" as eth0

I also have some ipchains rules set. I wanted to disable any incoming TCP
connection while allowing any machine on my home network (10.x.x.x) to be
able to communicate with the outside world.  Here is my ipchains file as it
exists right now:

# Firewall configuration written by lokkit
# Manual customization of this file is not recommended.
# Note: ifup-post will punch the current nameservers through the
#       firewall; such entries will *not* be listed here.
:input ACCEPT
:forward ACCEPT
:output ACCEPT
-A input -s 0/0 -d 0/0 -i lo -j ACCEPT
-A input -s 0.0.0.0/0.0.0.0 -d 0.0.0.0/0.0.0.0 -i eth0 -p 6 -j DENY -y
-A input -s x.x.x.x (my r.r. ip address)/255.255.255.255 53:53 -d
0.0.0.0/0.0.0.0 -p 17 -j ACCEPT
-A forward -s 10.0.0.0/255.0.0.0 -d 0.0.0.0/0.0.0.0 -i eth1 -j MASQ


Does anyone see where I'm going wrong?  Can anyone offer any suggestions?

I thank you all in advance!!!!

Greg