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Old 06-15-2010, 01:00 AM   #1
smart_shell
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Registered: May 2009
Location: NYC
Distribution: Ubuntu 10.04 LTS
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Redirect iptables


Hi,
We have the network, 10.19.0.0/24 GW(10.19.0.222 centos) and two irc servers
one 10.19.0.7
two 10.19.0.222
I need to change connection from 10.19.0.220:6667 to 10.19.0.7:6667 on GW(10.19.0.222 iptables FW).
i did:
iptables -t nat -A PREROUTING -i eth0 -p tcp -m tcp --dport 6667 -j DNAT --to-destination 10.19.0.7:6667
iptables -t nat -A POSTROUTING -p tcp --dst 10.9.0.7 --dport 6667 -j SNAT --to-source 10.19.0.222
but no result.
Please help.
Thnx
 
Old 06-15-2010, 07:46 AM   #2
vehl_g1
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Registered: Jun 2007
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Wink

Quote:
Originally Posted by smart_shell View Post
Hi,
We have the network, 10.19.0.0/24 GW(10.19.0.222 centos) and two irc servers
one 10.19.0.7
two 10.19.0.222
I need to change connection from 10.19.0.220:6667 to 10.19.0.7:6667 on GW(10.19.0.222 iptables FW).
i did:
iptables -t nat -A PREROUTING -i eth0 -p tcp -m tcp --dport 6667 -j DNAT --to-destination 10.19.0.7:6667
iptables -t nat -A POSTROUTING -p tcp --dst 10.9.0.7 --dport 6667 -j SNAT --to-source 10.19.0.222
but no result.
Please help.
Thnx
Just use this command, it's send all requests from eth0 with dst port 6667 to 10.19.0.7 and check the 10.19.0.7 to listen that port .
iptables -t nat -A PREROUTING -i eth0 -p tcp -m tcp --dport 6667 -j DNAT --to-destination 10.19.0.7

Last edited by vehl_g1; 06-15-2010 at 07:47 AM.
 
Old 06-15-2010, 10:17 PM   #3
smart_shell
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Registered: May 2009
Location: NYC
Distribution: Ubuntu 10.04 LTS
Posts: 52

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Sorry guys, i had to add the rule for FORWARD. Now everything work fine. Thnx
 
  


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