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Old 03-23-2005, 05:22 AM   #1
friendklay
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Registered: Jan 2003
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Question 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.
 
Old 03-23-2005, 06:37 AM   #2
fr_laz
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Registered: Jan 2005
Location: Cork Ireland
Distribution: Debian
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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....

Last edited by fr_laz; 03-23-2005 at 06:39 AM.
 
  


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