Port forwarding

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From: Iain King (iainking70_at_hotmail.com)
Date: 05/05/04


Date: Wed, 5 May 2004 15:47:27 +0100

I have SBS 2003, 2 NICs. I'm trying to get set up Remote Access and having
difficulty, so I am trying things one step at a time. Right now I'm trying
to get the port forwarding on the router to work, if that is what is broken:
read and advise please:

The internet IP of the router changes, but lets say it's 80.180.120.10. The
LAN IP of the router is 10.0.0.1. The IP of the public NIC is 10.0.0.2, the
private NIC is 192.168.16.1.
I have enabled the telnet service. When I try to telnet to 10.0.0.2, it
works fine.
I have enabled the port forwarding on the router to forward telnet (port 23)
to 10.0.0.2, but when I try to telnet to 80.180.120.10 I get

C:\Documents and Settings\Administrator>telnet 80.180.120.10
Connecting To 80.189.121.101...Could not open connection to the host, on
port 23
: Connect failed

There is only a small delay before the connection is refused (whereas, if it
can't find a server it tends to take a while before failing)

My thoughts are that port forwarding just grabs anything sent on the
relevant port which is sent to 80.180.120.10 and sends it on to 10.0.0.2.
If so, what's going wrong? Or am I just wrong? Help!

Iain



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