I would like to manually set up routing to subnet 22.214.171.124/16 through IP which is an alias: 126.96.36.199. IP alias is set up like that:
/sbin/ifconfig eth0:0 188.8.131.52 netmask 255.255.255.255 broadcast 184.108.40.206
At the beginning i tried something like that:
route add -net 220.127.116.11 netmask 255.255.0.0 gw 18.104.22.168 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 22.214.171.124 tell 126.96.36.199 Wed Jun 6 08:37:13 2012 : arp who-has 188.8.131.52 tell 184.108.40.206 Wed Jun 6 09:07:19 2012 : arp who-has 220.127.116.11 tell 18.104.22.168
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 22.214.171.124/16 via 126.96.36.199
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 188.8.131.52 -o eth0 -j SNAT --to-source 184.108.40.206-220.127.116.11 iptables -t nat -A POSTROUTING -s 18.104.22.168 -o eth0 -j SNAT --to-source 22.214.171.124-126.96.36.199 iptables -t nat -A POSTROUTING -s 188.8.131.52/16 -o eth0 -j SNAT --to 184.108.40.206 iptables -t nat -A PREROUTING -p tcp -d 220.127.116.11 -j DNAT --to-destination 18.104.22.168-22.214.171.124
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?