Stateful NAT and Mapping ID

From: Gregory Gombas (ggombas@gmail.com)
Date: Thu Oct 11 2007 - 12:07:06 ART

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Can someone please clarify what the function of the Mapping ID is when
using stateful NAT?

According to the DOC cd:

mapping-id map-number - Specifies whether or not the local Stateful
NAT (SNAT) router will distribute a particular set of locally created
entries to a peer SNAT router.

I noticed in the config examples the mapping ID matches on both routers.
Also I noticed the mapping ID configured on the ip nat inside source command.
Does that mean you configure the same mapping ID on all nat statements
you want to share with your peer?

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