How do I set up a NAT from a secondary WAN IP

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May 13th, 2010
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I have a UC520 and have 1 public IP and on WAN(FastEthernet 0/0)

I have now  added a se condary IP on the same wan and it shows up like this




interface FastEthernet0/0
description WAN
ip address xxx.xxx.xxx.xxx yyy.yyy.yyy.yyy secondary
ip address xxx.xxx.xxx.xxx yyy.yyy.yyy.yyy


I added a NAT rule to WAN to go to an inside IP but it wont work.


I pinged the WAN secondary IP and i get no response


I am unsure what to do next.


Please help me

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Marcos Hernandez Sun, 05/16/2010 - 07:23
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Here is what you need to do:


1. Configure these additional IP as secondary WAN IP.



interface FastEthernet 0/0
   ip address A.B.C.D 255.255.255.248 secondary


2. Create the static entry


ip nat inside source static ip 192.168.1.61 A.B.D.C extendable


3. this may not be necessary since there is no access-list in his WAN interface (FastEthernet 0/0)


access-list 104 permit ip any host A.B.C.D



Marcos

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