Simple port forwarding device for block of IP addresses

Hey experts,

We're in the process of upgrading our new office connection to Comcast Business.  We have a block of IP addresses to forward traffic from external IPs to internal IPs.  Unfortunately, the SMC device that Comcast gave us doesn't allow port forwarding from multiple IPs.  Their suggestion was to purchase a router and forward from there.

Can anyone make a recommendation for an inexpensive router that will forward five external IPs to five different internal IPs?

Who is Participating?
TomRScottConnect With a Mentor Commented:
A number of consumer grade and SOHO routers and firewalls will do "simple port forwarding" for a single external IP. However, you're using multiple external IP addresses and that narrows the field considerably.  You may have to go with a higher end unit, such as the above Cisco units, Watchguard, SonicWALL or others. SonicWALL has a number of SOHO units in the $400-$700 that should meet your need.

If you are in a major time crunch and have to go with whatever is locally available, you could use multiple consumer grade or inexpensive SOHO routers until you can acquire a more advanced router. Setup would be trivial and the cost is pretty low even for a short term fix to a near term planning failure. Assuming the internal servers use static IP, you may wish to set their gateway addresses to their "personal" gateway router. All the other servers and stations can just use the current gateway address.

 - Tom
SouljaConnect With a Mentor Commented:
A used Cisco 3825 router. Plenty of them on Ebay. What bandwidth are you getting? If not more than 60Mbps, you could even go with a used Cisco 2811 router. I'd take a used Cisco router over a new SOHO router anyday.
xlingshotAuthor Commented:
I appreciate the recommendation.  Unfortunately, I need something by the end of the week.  Also, this seems like a bit of overkill.  I really just need a device that can just do simple port forwarding.
Firewall Management 201 with Professor Wool

In this whiteboard video, Professor Wool highlights the challenges, benefits and trade-offs of utilizing zero-touch automation for security policy change management. Watch and Learn!

xlingshotAuthor Commented:
Thanks for the feedback guys.  In the end, we decided to just port forward from the gateway's IP address to the servers and adjusted the ports so they didn't conflict.
Okay, so you didn't make use of the other ip addresses of your block correct?
xlingshotAuthor Commented:
Correct.  Down the road we might put in a SOHO firewall, but we needed a solution by the end of the week and this was the best we could do on short notice.
Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

All Courses

From novice to tech pro — start learning today.