Michael C. Toren on 9 Apr 2004 04:21:01 -0000


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Re: [PLUG] Iptables Nat Port Forwarding


On Thu, Apr 08, 2004 at 10:24:39AM -0400, LeRoy Cressy wrote:
> Last night there was a question about how to get port 22 to 
> automatically be forwarded to a machine inside a firewall to a private 
> address.

[..]

That's a good deal of boilerplate, but the only iptables rule you should
need is something along the lines of:

    iptables -t nat -A PREROUTING  -i eth0 -p tcp --dport 22 \
        -j DNAT --to 192.168.42.11:22

(Assuming eth0 is the external interface.)

-mct
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