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How to Configure open ports on a Cisco 877 Router

Posted on 2007-11-16
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Last Modified: 2012-08-13
Setup:  I have a Cisco 877 ADSL Router that is configured with a single Static Public IP address.  I also have a Windows SBS 2003 on the LAN that I want to access via the internet for OWA and RPC over HTTP.  The server has a single IP address of 192.168.20.10.

Question.  How can I configure the Cisco to map multiple ports to a single internal IP address?  I am trying to do this in SDM, but it will not allow me to map more than one port to the same internal IP address.

Please help.  

P.S.  If you are suggesting a solutions that requires editing the configuration without SDM, please be specific about where and how to enter the configuration changes since I am not familiar with Cisco.
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Question by:doulos777
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wingatesl earned 500 total points
ID: 20303197
I have made a powerpoint that will explain how to forward ports through the Router using the SDM. You can definitely forward more than one port to the same internal device through the router. You can view the powerpoint here
Http://www.inacom-sby.com/sdm.ppt Also Please post a copy of your running config (tools, view running config) so we can verify there are no other problems. Thanks!
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by:doulos777
ID: 20309167
That is one of the best answers that I am ever received on Experts Exchange.

The PowerPoint really put it over the top!

I will let you know how it goes.
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