Hi all,

I have:
1- RHEL5 on desktop that has 2 NIC's,
eth0 -> 10.10.10.10/8
eth1 -> 172.10.10.10/16

2- RHEL4 on desktop with eth0 -> 10.10.10.11/8

3- FC5 on laptop with eth0 -> 172.10.10.11

I configured a static route on the 10.10.10.11 desktop like:
route add -net 172.10.0.0 netmask 255.255.0.0 gw 10.10.10.10
and I could ping 172.10.10.10 (2nd NIC on RHEL5) successfully, but couldnt ping the 172.10.10.11 (FC5), at the (RHEL5):I configured the ip_forwarding in the /etc/sysctl.conf and by echo "1" > net.ipv4.ip_forward. And also I couldnt ping the FC5.

Did I miss something to do?
and
Could I configure the 2 IP's on RHEL5 in the same subnet (like 192.168.1.1 and 192.168.1.2)??

Regards
Mhm

There also has to be a route defined on FC5 back to RHEL4.

No, the nics have to be in different subnets.

I appreciate your help nut i dont think that is the solution, rhel4 desktp should ping the FC5 if I dont do the static route on FC5.

Guys its really driving me crazy, routng is pretty straight froward and it just cant be done.

If I put the RHEL5 the default gateway for the 2 networks, the clients in the 2 networks should ping each other without static routing but it also dont work.

Whats the ****?
what I have to check? the types of the NICs or the version of my kernel?

Any ideas?????

Regards
Mhm

Routing is a two way street. Both endpoints of the connection have to know how to get to each other. You only added a static route on the RHEl4 host. You need a second static route, on the FC5 host.

Try running this on the FC5 host:

route add -net 10.0.0.0/8 gw 172.10.10.10

then do your ping again.

If that still doesn't work, run "netstat -rn" on all three hosts, and post the results here.

Yes guys, framp and whistl, you were right.
I just configured the static route on the other side and the packets flowed. I thought I should configure it from one side.

Thanx alot,

Mhm