iptables and NAT

[Jatin K]

Dear All

I'm trying to configure iptables with Network Address Translation

Scenario is like

server 1 with IP address 192.168.131.131 is running httpd

server 2 with two NIC, one is  xx.xx.xx.xx ( live ip ) and another is 
192.168.131.133,

---
I run following command on server 2 ( which is going to be acting as 
firewall  )

iptables -t NAT -A PREROUTING -d xx.xx.xx.xx -J DNAT --to-destination 
192.168.131.131

but it ends with following error

iptables v1.3.5: can't initialize iptables table `nat': Table does not 
exist (do you need to insmod?)
Perhaps iptables or your kernel needs to be upgraded.

----------Following are some details of my server--------
*uname -r *

2.6.18-194.32.1.el5



*lsmod | grep ip *

ip_tables    17029     0
x_tables     17349     1 ip_tables
ipv6            270561  19
xfrm_nalgo    13381 1 ipv6
acpiphp 27089 0
dm_multipath 25421 0
scsi_dh 12097 1 dm_multipath
dm_mod  63225 15 
dm_multipath,dm_raid45,dm_snapshot,dm_zero,dm_mirror,dm_log


Can anyone guide me ??? whats going wrong with it ? how to resolve this 
problem



Thanx & regards

-- 
   °v°
  /(_)\
   ^ ^  Jatin Khatri
Registerd Linux user No #501175
www.counter.li.org
No M$

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