Hi all,

the following scenario:

lan1: 192.168.1.0/24
lan2: 10.200.30/24
eth0 = 192.168.1.1/24
eth1 = 10.200.3.254/24

a dualhomed linux-box (debian-woody stable, custom kernel 2.4.20 from
kernel.org) should route between the two networks. i activated
ip_forwarding with 'echo 1 > /proc/sys/net/ip_forwarding' and the
routing table looks like the following:

Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
10.200.3.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1
192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0


i can ping both interfaces from the according lan and interestingly
i'm able to ping 192.168.1.1 from a machine inside the 10.200.3.0-lan,
but that's it. i cannot ping other machines in the 192.168.1.0 net
from 10.200.3.x and vice versa it's the same.

i would be glad about any hints what could be going on, since as far
as i know there is nothing more to do except activating ip-forwarding
for a linux box to act as a simple router between two lans. gated or
routed is only neccessary for dynamic routing, correct me if i am
wrong!

greetings,
martin