On a linux box, I want to redirect locally-originating IP multicast traffic (OSPF hello) over a gre tunnel interface. How can I do this using iptables rules?
I am trying to change the destination ip of ospf hello packet (22.214.171.124) to link local address using iptables rule (DNAT) . It does not seem to work. A similar rule for unicast packet (BGP control) ...
In a given machine I have got two interfaces eth0 and eth1. Cisco routers are connected, to both interfaces, eth0 and eth1 and I want OSPF packets which arrives on eth0 to be forwarded to eth1 and ...