Hey all
I need your help with ebtables. I want to redirect traffic through local interfaces.
I have am Ubuntu linux machine with several NICs.
(I understand that ebtables is the same for RH)...
eth0 and eth1 are part of a bridge (br0) and they are connected to tap device. On eth0 I get traffic from network 10.10.10.0/24 to the internet.
Through eth1 I get the responses, internet addresses to 10.10.10.0/24.
None of the packets are destined to the linux host (on L3 and L2 as well).
My goal is to separate the traffic to other interfaces.
Every packet that enters eth0 with source ip 10.10.10.0/24 should be routed or redirected to eth3 (Packet should have the same source and destination IP but the frame should now contain a new SRC MAC, eth3's MAC).
The same applies to traffic that is coming in from eth1. I want to route it to eth4.
eth0 and eth1 are unidirectional, that means that I can't change the traffic and I'm only intercepting it.
Can you please help me build this filter using ebtables ?
I had no luck so far.
Thanks !!