I have a computer (running Linux) with 2 interfaces eth0 and eth1.
eth0 with address 10.0.0.100/24
eth1 with address 192.168.1.100/24
They are connected to 2 different networks (10.0.0.0/24 and 192.168.1.0/24), these networks are connected with a router. Other computers on 10.0.0.0 can ping a computer on 192.168.1.0.
But if I, on this computer, try
ping -I eth0 192.168.1.100
I don't get any reply. If I listen on eth1 I receive icmp request from 10.0.0.100 but it does not send any reply.
I've tried to set some static routes but did not make any difference. I also read up on kernel rp_filter and changed that to 2 (and 0, and 1) but did not make any difference either.
Anyone knows why and how to solve this?
The only reason I wanted to do this was to measure performace between the two networks using a single computer.