Outside-to-Inside Translation

Outside-to-inside translation occurs in the following order:

1. Traffic from the outside, public domain enters the router.
2. All traffic from an interface that is marked outside, whether or not it requires NAT, is sent to the server module.
3. The server module searches for an associated NAT match.
4. If the server module:
   • Finds a NAT match, and the destination interface is marked as inside, the server module performs the appropriate translation and sends the packet to the appropriate destination.
   • Does not find a NAT match, and the destination interface is marked as inside, the server module drops the packet.
   • Does not find a NAT match, and the destination interface is not marked as inside, the server module processes the packet normally for its destination.

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