Unanswered Question
Dec 30th, 2007


Following is my router config.



interface FastEthernet0

ip address 201.x.x.x

ip nat out side


interface FastEthernet1

ip address

ip nat inside


ip nat pool OFFICE 201.x.x.x 201.x.x.x netmask

ip nat inside source list 10 pool OFFICE overload


access-list 10 permit ip

We get another 202.x.x.x/30 ip address from ISP and I would like both /30 to be NAT. how to config the router?


I have this problem too.
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Edison Ortiz Sun, 12/30/2007 - 09:58

1) You need to configure a secondary IP address on interface FastEthernet0 that is part of the 202.x.x.x/30 network.

2) Create a new pool

3) Create a new list

If you want to load balance between the 2 NATs, you can break the current ACL as follow:

no access-list 10 permit ip

access-list 10 permit ip

access-list 20 permit ip

interface FastEthernet0

ip address 202.x.x.x secondary

ip nat pool OFFICE-202 202.x.x.x 202.x.x.x netmask

ip nat inside source list 20 pool OFFICE-202 overload


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