On Thursday 06 June 2002 8:10 pm, [EMAIL PROTECTED] wrote:

> Hi all-
>
> I have a linux box with 1 network card connected the internet with 7
> internet IP's, and 1 network card and internal ip.  I'm trying to forward
> a port from one of the internet ip's aliased to it across the firewall to
> internal.  Here's the forward rule that I use:
>
> $IPTB -A FORWARD -d 1.2.3.4 -p tcp --dport 3389 -j ACCEPT
>
> When I connect to the specified IP address it doesn't work.  If I take the
> destination IP out it works fine.  Any ideas as to why it won't work with
> the destination IP?

Presumably you are doing DNAT at the same time.   Is 1.2.3.4 the original 
destination address before translation, or the real destination address of 
the translated packet ?

PREROUTING happens before FORWARDing.


Antony.

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