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Cisco 827H MutiNAT capabilities

I can't find many references to any descriptive documents explaining the possibilities of Multi NAT in Cisco 827 router. In my scenario I am wondering if the following is possible:

My ISP provides me with 5 registered IPs, which I would like to selectively forward to some internal private IPs based on the port of the incoming request. For example

packets for realip1 port 80 would be directed to 192.168.0.100,

packets for realip2 port 80 would be directed to 192.168.0.101,

packets for realip1 port 5900 would be directed to 192.168. 0.101

all packets for realip3 would be directed to 192.168.0.102

etc etc

I'm a newbie at this so please forgive me if this sounds silly or oversimplified. Any feedback and explanations will be greatly appreciated!

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Re: Cisco 827H MutiNAT capabilities

Your scenario is certainly possible. Take a look at the NAT technical tips page:

http://www.cisco.com/warp/public/556/index.shtml

Also, here is a specific example of Allowing the Internet to Access Internal Devices:

http://www.cisco.com/warp/public/556/12.html#3

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