Make a server ( other than the router ) to be the default gateway for a subnet

Posted by powerguy123 on Super User See other posts from Super User or by powerguy123
Published on 2012-11-11T04:51:47Z Indexed on 2012/11/11 5:05 UTC
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networking

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gateway

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load-balancer

I am trying to make a server ( lets call it server_A) which is different from the router to be the gateway for a subnet. Why do I want this ? I want to host a loadbalancer on server_A using LVS-NAT, and I dont want to implement a V-Lan or IP-IP tunneling.

I have modified the routing tables of the remaining servers on the subnet to use server_A as the gateway. I have set server_A to not send ICMP reroute packets. But most traffic from servers in that subnet to outside clients are still being sent through the original gateway, bypassing server_A. Is there any other configuration I need to set in order to achieve my goal ?

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