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NAT question

boblutton
Level 1
Level 1

I have a 2600 router, with 2 ATM/ADSL dialer interfaces, in production.

I am adding a new ethernet card to the 2600, and will move all upstream traffic from the ADSL lines to a

the new ethernet link.

Currently, NAT is running, with the Dialer interfaces as "Outside" interfaces, and ethernet 0/0 as the inside interface

I will shut down the ATM interfaces, and remove NAT statements from Dialer1 and Dialer 0;

Since I am using a NAT pool with the current dialer interfaces, will I simply move the "ip NAT Outside" to the new ethernet

interface, or will other steps be required ?

-----------------------------

interface ATM0/0

interface ATM0/1

interface Ethernet0/0

ip address 172.16.1.1 255.255.0.0

ip nat inside

interface Ethernet 1/0

description New Ethernet upstream link

ip address 192.168.142.9 255.255.255.248

????? ip nat outside

interface Dialer0

no ip nat outside

shutdown

!

interface Dialer1

no ip nat outside

shutdown

!

ip nat pool NAT 192.168.132.107 192.168.132.110 netmask 255.255.255.248

ip nat inside source list 1 pool NAT overload

ip nat inside source static 172.16.1.2 192.168.132.105

2 Replies 2

boblutton
Level 1
Level 1

the access-list

access-list 1 permit 172.16.0.0 0.0.255.255

jackyoung
Level 6
Level 6

Yes, move the nat outside command to the correct interface and ensure the nat pool will work w/ new Ethernet address is fine. i.e. confirm the nat pool will not conflict w/ the remote side address ?

Hope this helps.

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