I have:
eth0 eth0
Router 1|eth1 ---- eth1|Router 2
Both eth0's are connected to the Internet. However currently the default route to reach the Internet on Router 2 is via eth1 (so it goes through router 1). Router 1 can reach the Internet fine, however I am unable to ssh to the ip on eth0 on Router 2 from the Internet.
I tried `sudo bash -c 'echo 0 > /proc/sys/net/ipv4/conf/eth1/rp_filter' but that has not resolved the issue. When I do a packetdump on router 2 filtering on the source IP of the machine trying to ssh to Router 2 I see the incoming packets but no replies.