ASA-ADSL Router-PPPoE

Answered Question
Oct 28th, 2008
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Hi all

I have an ADSL line connected to 2811 router and configured PPPoE on the router.this router is connected to ASA where all the inside network is PAT ed to outside interface of the ASA.My question is in ADSL router what IPs should I NAT in "ip nat inside source list" accesslist?Whether it is only the outside ip of ASA or All the inside network behind the firewall


Thanks in advance


Correct Answer by Collin Clark about 8 years 8 months ago

Then you should NAT all your public IP's (or at least the ones being used).

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Collin Clark Tue, 10/28/2008 - 12:30
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Are you NATing at the firewall? If so, you should not need to NAT on the router, just let it route.

anva12345 Tue, 10/28/2008 - 12:39
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Thanks Collin for quick response

Yes. I am NATing at the firewall.But not to any Public IP.But to a private ip of subnet used only between ASA and ADSL router.From ASA i am pointing default route to ADSL router where PPPoE is configured.


Correct Answer
Collin Clark Tue, 10/28/2008 - 12:43
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Then you should NAT all your public IP's (or at least the ones being used).

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