Hello, There's my situation: system: clean CentOS release 4.2 (Final) Network: eth0: 192.168.2.1/24 eth1: 192.168.0.65/24 gw 192.168.0.1 With standard CentOS kernel I'm able to do nat with: iptables -t nat -A POSTROUTING -s 192.168.2.0/24 \! -d 192.168.2.0/24 -j SNAT --to 192.168.0.65 For example: mtr -n --address 192.168.2.1 192.168.0.1 works fine, and while I watch iptables with watch -n1 iptables -t nat -vnL POSTROUTING I see counters incerasing (of course net.ipv4.ip_forward = 1). While using ovzkernel-2.6.8-022stab061.1 kernel that rule do not apply. And while watching iptables I do not see any counters activity. I assume that's connected with networking issues in OpenVZ, but I've seen some topics here, which covers NAT... Well, I missed something... But what?! Best Regards, Luke
We have disabled conntracks on hardware node by default. See http://openvz.org/documentation/faq/en#14 for details.