On 12/28/2015 01:54 PM, Александр Кириллов wrote:
By the gateway I mean a host with 2 public ips on separate interfaces
connected to lan via the third interface. My undestanding of the OP is
that all traffic coming to some other host in the lan through one of
the public interfaces on the gateway must be routed back out that same
interface.
Joey said that he had a server, not a router, so I did not get the same
impression as you. However, even in the situation you describe, where a
Linux router has two WAN links and one LAN, you can use "ip rule" to
manage multi-homed routing without using iptables to mark packets based
on MAC addresses, or any other exotic solutions.