Question: routing packets via specific router in LAN?
From: Yi Li <hidden>
Date: 2012-09-03 06:04:52
Hi All, I have server --- router ---client three machines, and they all have only one ip in the same LAN. I want to instruct the packets flowing through the router when the server and client communicates. I have do the following things to setup: on the server: # ip route add to unicast CLIENT_IP/32 via ROUTER_IP dev eth0 # echo 0 > /proc/sys/net/ipv4/conf/all/accept_redirects # echo 0 > /proc/sys/net/ipv4/conf/eth0/accept_redirects on the client: /*modify route table*/ # ip route add to unicast SERVER_IP/32 via ROUTER_IP dev eth0 /*disable icmp-redirects accept*/ # echo 0 > /proc/sys/net/ipv4/conf/all/accept_redirects # echo 0 > /proc/sys/net/ipv4/conf/eth0/accept_redirects on the router: /*enable forwarding*/ # echo 1 > /proc/sys/net/ipv4/ip_forwarding /*disable icmp-redirects*/ # echo 0 > /proc/sys/net/ipv4/conf/all/send_redirects # echo 0 > /proc/sys/net/ipv4/conf/eth0/send_redirects BTW, I have disabled iptables on all of these three machines. But I still can't tcpdump any packets on the router which means no packets flowing through the router. The server and client communicates by pass the router! So, What I have missed, or we can't setup server-router-client topo in LAN? Thanks in advaced.