NAT get sequenced after usual IDS before routing?

I use IOS IDS to audit an external interface and ID messages show destination address of message-NAT. ID Messages should not show the pre - NAT IP address instead?

The challenge even expressed another way; I'm looking for confirmation if the source inside NAT should take place before the ID of the audits coming although the external interface? (ID of IOS in a 3745 with 12.2.13)

Here is an example config.

interface FastEthernet0/0

NAT outside IP

evaluation of the intellectual property in IDS-AUDIT

interface FastEthernet0/1

IP nat inside

IP nat inside source static

As far as I understand, the packets that travel from outside to inside translate forwarded. The packets that travel from inside to outside are routed and translated. Because ID (for the intercepted traffic) messages translated as a destination and not address dest pre - NAT address obviously inbound traffic to get NAT would be before IDS inspected before delivery?

A big thank you to anyone who can get their mind around it enough to offer a suggestion or an answer :)

This should respond to your request;

http://www.Cisco.com/warp/public/556/5.html

Concerning

Yusuf

Tags: Cisco Security

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