Is it possible to have two hardware devices on port 80?

Posted on 2008-10-17
Last Modified: 2012-05-05
I have a home server on my network, which uses port 80 for HTTP. I also have a net based controller box which also want to use port 80. Neither devices can be configured to use a different port. I presumed that I could get around this with port forwarding however I cannot get it to work. My router is a Netgear RP614v3. Am I trying to do the impossible?

Many thanks

Question by:Mark Preston

Expert Comment

ID: 22740702
As long as the devices have different IP addresses it shouldn't be a problem... are you using NAT and only have 1 external IP address?

Expert Comment

ID: 22740737
Unfortunately, with port forwarding your router can only take requests on a single external IP address and forward a particular port to one destination.  If the end points cannot be reconfigured to utilize different ports, then the only solution I am aware of is to request a range of external addresses from your ISP.  This would allow you to do 1 to 1 NAT seperately for each device.

Author Comment

by:Mark Preston
ID: 22740755
I am indeed using NAT with one external IP address.
LVL 50

Expert Comment

by:Don Johnston
ID: 22740761
>Am I trying to do the impossible?

I think so. I just looked through the manual and I can't find anything on whether you can do that or not. I'm guessing that means you can't.

I know that you can on every Linksys router I've setup.

How your wiki can always stay up-to-date

Quip doubles as a “living” wiki and a project management tool that evolves with your organization. As you finish projects in Quip, the work remains, easily accessible to all team members, new and old.
- Increase transparency
- Onboard new hires faster
- Access from mobile/offline


Author Comment

by:Mark Preston
ID: 22740859
So If I ditch my Netgear and get a Linksys router I should be able to configure this to work OK?
LVL 50

Expert Comment

by:Don Johnston
ID: 22740984
Noiw that I think about it, I had to change the port on the device because even the Linksys wouldn't allow that.


Author Comment

by:Mark Preston
ID: 22756137
I've tried to talk to Virgin about getting a second IP address but just hit the call centre and can't seem to explain that I know that I can connect two computers if I just buy a router. I have a router but need a second IP address. Arggghhh!!
LVL 50

Accepted Solution

Don Johnston earned 250 total points
ID: 22756453
A second IP address won't help in this situation. That would only help on a router that supports dynamic NAT and it doesn't look like your Netgear router does. You don't usually see that until you get up to the enterprise class routers. (i.e. Cisco)

The only way I can see around this is to either figure out how to change the port that one of your devices use, or pick up a Cisco (or equivilent) router that will let you forward an external port to a different internal port.  

Author Closing Comment

by:Mark Preston
ID: 31507120
Many thanks - I had a feeling that my router wasn't up to the job. Just have to figure out which router to  buy.



Featured Post

How to improve team productivity

Quip adds documents, spreadsheets, and tasklists to your Slack experience
- Elevate ideas to Quip docs
- Share Quip docs in Slack
- Get notified of changes to your docs
- Available on iOS/Android/Desktop/Web
- Online/Offline

Join & Write a Comment

New Server  was moved from behind Router R2 f0/1 to behind router R1 int f/01 and has now address But we want users still to be able to connected to it by old IP. How to do it ? We can used destination NAT (DNAT).  In DNAT…
This article is a guide to configure bridging on Cisco Routers.  This is something I never knew was possible until after making a few phone calls to Cisco.  Using bridging saved our company money by not requiring us to purchase a new switch.  Bridgi…
After creating this article (, I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…
After creating this article (, I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…

747 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

Need Help in Real-Time?

Connect with top rated Experts

11 Experts available now in Live!

Get 1:1 Help Now