[CentOS] iptables 1.4 and kernel 2.6 CONFIG_IP_NF_MATCH_STATE

Hi,

I have a VPS running Centos 6.2 and trying to run this iptables rule:

[root@myserver ~]# iptables -A INPUT -i venet0 -m state --state ESTABLISHED -j ACCEPT

iptables: No chain/target/match by that name.

Narrowing down the issue it seems there is no IP_CONNTRACK support but now it's called NF_CONNTRACK. However following this link:

http://www.spinics.net/lists/netfilter/msg33535.html

I have found that I don't have CONFIG_IP_NF_MATCH_STATE support.

Unfortunately this virtuozzo VPS is not using modules:

[root@vrtl13369 ~]# lsmod Module Size Used by

How can I enable that CONFIG_IP_NF_MATCH_STATE support in my kernel? I prefer to stick to the kernels provided by the repos and not recompile my own kernel.

Regards,

Miguel