I would like to manually set up routing to subnet 220.127.116.11/16 through IP which is an alias: 18.104.22.168. IP alias is set up like that:
/sbin/ifconfig eth0:0 22.214.171.124 netmask 255.255.255.255 broadcast 126.96.36.199
At the beginning i tried something like that:
route add -net 188.8.131.52 netmask 255.255.0.0 gw 184.108.40.206 dev eth0
and everything worked just fine, until i got an email from my datacenter that IP address is sending wrong ARP packets:
Wed Jun 6 08:07:15 2012 : arp who-has 220.127.116.11 tell 18.104.22.168 Wed Jun 6 08:37:13 2012 : arp who-has 22.214.171.124 tell 126.96.36.199 Wed Jun 6 09:07:19 2012 : arp who-has 188.8.131.52 tell 184.108.40.206
Conversation with their support went to nothing and now i'm still trying to fix that. Another setup which worked (but still was sending these wrong ARP packets) was:
ip route add 220.127.116.11/16 via 18.104.22.168
i think this one internally worked just the same.
Next i tried configuring routing through iptables and SNAT. I enabled ip-forwarding and tried different crazy stuff like:
iptables -t nat -A POSTROUTING -s 22.214.171.124 -o eth0 -j SNAT --to-source 126.96.36.199-188.8.131.52 iptables -t nat -A POSTROUTING -s 184.108.40.206 -o eth0 -j SNAT --to-source 220.127.116.11-18.104.22.168 iptables -t nat -A POSTROUTING -s 22.214.171.124/16 -o eth0 -j SNAT --to 126.96.36.199 iptables -t nat -A PREROUTING -p tcp -d 188.8.131.52 -j DNAT --to-destination 184.108.40.206-220.127.116.11
None of these changed routing. Could anyone give me any sort of advice how to change route to this subnet without sending spare/wrong ARP packets?