I have few Linux RHEL 6 Server where i have configured 2 separate NICS in the same subnet with 2 diffrent IP's.
> example:
> eth0 : 172.23.23.1
> eth1: 172.23.23.2
Initially i faced the problem with "rp_filter" reverse packet filtering which i enabled with "net.ipv4.conf.default.rp_filter = 2" into the sysctl.conf file tp persist across reboot, both nic are pinging but the odd i see if we un-plug primary ie NIC eth0 then host will stop responding. Secondly, on the switch side it takes only the single MAC address for the both the IP's.
please advise if anyone faced this!