Gateway Routing to Two Local Machines Listening on the Same Port

Posted on 2004-04-29
Last Modified: 2010-04-11
I have two machines running applications on my local network that listen on the same port, say 8888 (fixed).    I can connect from outside my network via a static IP address and port forwarding to one local machine.  

I can change the port on the client applications.  Can I configure the router so that if a client connects externally on port 7777, it will actually route to the second local machine on port 8888?

Using Linkysy BEFSR41, if that helps.
Question by:enlighten_me
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 3
  • 3
  • 2
LVL 27

Assisted Solution

pseudocyber earned 100 total points
ID: 10952572
I don't believe so - it does port forwarding, not Port Address Translation (PAT).

Expert Comment

ID: 10952597
Yes when you log in click on the advanced tab.. .
 In the advanced section, click on the Forwarding tab.
 put in the port to accept from the outside world and what address / port to send it to.
That should do it for you
LVL 27

Expert Comment

ID: 10952642
Industry Leaders: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!


Author Comment

ID: 10953166
In Setup->Advanced Routing, there's configuration settings for Dynamic Routing, Static Routing, and NAT, but no Forwarding Tab

There's no main Advanced tab, just  Setup, Security, Applications&Gaming, Administration, and Status.

In the Applications&Gaming Tab, my options are Port Range Forwarding, Port Triggering, UPnP Forwarding, and DMZ.

Page with link to the manual:

Accepted Solution

Tele_tech earned 300 total points
ID: 10954664
Sorry the reference I used was for a slightly different unit

from the link  select the user guide

page 64 in the PDF Port range forwarding is the area you want.  you can forward a group of ports or just one at a time...
read through there and it should give you the specifics of setting it up on your router.

the two PC's will need static address's so that the address internal does not change.

If you need more specific info let me know... I wil have to locate another PDF on it as I can not make out some of the paticulars on some of the menus
Hopefully you have a real users guide and can see the options. or at least you can when you are logged in.

Author Comment

ID: 10959989
Yes, that forwards a port to a certain computer, which is what I'm doing already.  I have two machines on the local network listening on the same port (8888).  One can be connected to using port forwarding.  The other one, however, needs an external port 7777 mapped to its local port 8888.  

I can solve the problem using a local port mapping application, but I was wondering if the router can do anything.

Expert Comment

ID: 10963905
yes, in that port mapping selection you should have the option to set and external 7777 and send it to internal 8888.  In those settings the external and internal do not need to be the same.

Author Comment

ID: 10977842
Yes, looking carefully at the document I can see where the external->internal mapping is.  Unfortunately, my router doesn't support that feature (the document is for 3 different routers).  I'll split the points since pseudocyber was kind of right the first time through.

Featured Post

Portable, direct connect server access

The ATEN CV211 connects a laptop directly to any server allowing you instant access to perform data maintenance and local operations, for quick troubleshooting, updating, service and repair.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

#Citrix #Citrix Netscaler #HTTP Compression #Load Balance
This is an article about my experiences with remote access to my clients (so that I may serve them) and eventually to my home office system via Radmin Remote Control. I have been using remote access for over 10 years and have been improving my metho…
Get a first impression of how PRTG looks and learn how it works.   This video is a short introduction to PRTG, as an initial overview or as a quick start for new PRTG users.
Here's a very brief overview of the methods PRTG Network Monitor ( offers for monitoring bandwidth, to help you decide which methods you´d like to investigate in more detail.  The methods are covered in more detail in o…

730 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question