Re: How to port forward?
From: Arctic Wolf (SpamShield-ArcticWolf_at_mail.com)
Date: 02/10/04
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Date: Tue, 10 Feb 2004 09:51:31 -0500
> > > Computer A has two network cards; one card (DHCP) to the internet, and
> > > then other card (192.168.1.1) to computer B.
> > > Computer B has one network card (192.168.1.2), and accesses the
> > > internet through computer A.
> > > I can telnet to computer A from the outside (internet).
> > > I'm trying to access computer B from the outside (internet).
> > > Is the following correct?
> > > On computer A, right-click on the network icon that's connected to the
> > > internet and choose Properties. Click on the Sharing tab. Internet
> > > sharing is already checked. I now click on Settings button. Now
> > > click on Services tab. Check the Telnet Server. While Telnet Server
> > > is high lighted, click on Edit. Now enter the IP of computer B, which
> > > is 192.168.1.2. Is that it?
> > > Something seems missing. Don't you have to specify which port is
> > > forwarded to which port? Any help would be appreciated.
> >
> >
> > With ICS, you need to set the LAN side of the host and the client PC to
> > receive IP automatically. It won't work with the 192.168.0.X network.
> > (If you're using Server then its better to use NAT from Routing and
> > Remote Access.)
> > The port forward part is correct.
>
>
> Thanks for your reply, but that didn't quite solve my problem.
> When forwarding a port, don't you have to specify two ports? For example,
> if the port 4901 is forwarded to port 5901, then don't you have to specify
> that 4901 is the source port and that 192.168.4.2:5901 is the destination
> port? In my example above, there's no place to specify the destination
> port. I'm sure Windows 2000 has a way to port forward, but I just can't
> seem to get it to work.
> This web site tries to help, but the last section is unclear.
>
http://www.informit.com/isapi/product_id~{3BD59E20-8ADA-4E5A-891E-7D9C76E2E628}/element_id~{284020F2-D47A-41D6-B800-6FCD38670F73}/st~{EEA4B8BA-4464-4E41-BE37-B668A7ACCF61}/session_id~{BF6CB3F0-CCD9-4CDC-9B45-F6EFA0DC0E14}/content/articlex.asp
> That tutorial talks about redirecting the port 4020 but does not tell you
> how to do it? Is the port 4020 being mapped to 4020?
Hey, it worked! I don't need to specify two ports. The same port number is
used in mapping. So, now, when I want to telnet to computer B, I simply
telnet to A without specifying the port in the A's IP address. I won't be
able to telnet to A because all telnets to A is redirected to B.
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