Redirect Command

Hernan Arredondo hernan.arredondo at
Thu Apr 21 15:26:43 CEST 2005

Hi all,

I'm new with iptables, I trying to create a rule that redirect all the
packets that goes to the port 25 of my firewall to the port 25 in a
Internet LAN machine, then I execute the command:

/sbin/iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 25 -j DNAT

eth0 is the host exposed directly to Internet, and is the
host in the LAN.

Now, this is not working, I try a telnet <eth0> 25 and nothing happen.

What's wrong here ? Can anybody help me ?

Hernan Dario Arredondo

No matter how fast processors get,
software consistently finds new ways to eat up the extra speed

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