I install SLES10 OES2 SP3 router with two NIC.
There is no NAT, no firewall.
Forwarding is allowed.

First NIC is connected to test1 network with other OES servers.
Second NIC is connected to test2 network with workstations (Linux).

When I try connect to some services from test2 network to OES on test1 network, only ping works. Http, ssh etc. doesn't. I test it with ping packet from 100 to 55000.
Whne I Use tcpdump I see that packets (http,dns etc) goes to OES server on test1 net. NO response back to test2 network (no packets).

I use Linux (debian) as router and all services from test2 network to test1 network works (with the same hardware).

Can you help me ?