Problems configuring both static and dynamic NAT translations

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Oct 18th, 2006
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I have a router 4700 with a fastethernet interface (LAN) and a serial interface with leased line to our HeadOffice. Everybody that goes outside the LAN has to make NAT. I have configured dynamic NAT with a pool "ip nat pool p50200 netmask" but I have to configure static NAT for some addresses ",,". The problem is that the NAT translation for ",," are duplicated.

I Know that the global addresses use in static translations are not automatically excluded with dynamic pools containing those global addresses but I don?t know how exclude that addresses from the pool.

Thank for your help.


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juan.saez Wed, 10/18/2006 - 05:33
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I know it. The static translation is made perfectly but then the dynamic NAT assign the same address to other PC. The problem is that the same ip address is assigned to two different PC'S.

dradhika Fri, 10/27/2006 - 03:01
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  • Cisco Employee,

Hi Jaun,

Try configuring pool as below

ip nat pool test netmask

Router(config)#ip nat pool test net



Make sure that the pool does not contain the ip addresses that you configured in the static rules




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