iptables port forwarding not working!
 

I am getting the following error when I run the iptables rule below.


[root@vps07 cpins]# iptables -t nat -A PREROUTING -i eth0 -p tcp -d shell.somedomain.com --dport 443 -j REDIRECT --to-port 22
iptables v1.2.8: can't initialize iptables table `nat': Table does not exist (do you need to insmod?)
Perhaps iptables or your kernel needs to be upgraded.

What's wrong? My support company (Exovian) says that I need to create the table "nat". I however thing the tables are there by defualt, since that's how iptables work! Well, so what do I tell my support company (they sold me thier VPS). I believe I have been given a box with broken iptables. Sigh! Please help.

Hi,

if iptables works, then nat should be supported.
you should check wether the nat support is enabled in your kernel :
in 2.6.9 kernel, there are 2 options that are needed
Reject target support
Full NAT

did you try a more simple rule, such as :
iptables -t nat -A PREROUTING -j ACCEPT
the rule itself is useless, but this will validate that nat table is working....