Can a single NAT-enabled router allow some users to use NAT and other users on the same Ethernet interface to continue to use their own IP addresses?
A. Yes. This can be accomplished through the use of an access list describing the set of hosts or networks that require NAT. All sessions on the same host will be either translated or will pass through the router and not be translated. Access lists, extended access lists, and route maps can be used to define rules by which IP devices get translated. The network address and appropriate subnet mask should always be specified. The keyword any should not be used in place of the network address or subnet mask (see NAT FAQ, Best Practices and Deployment Guide for more detail). With Static NAT configuration, when packet doesn’t matched with any STATIC rule configuration, packet will be sent through without any translation.
Related Questions
- I have primary and secondary IP addresses configured on an Ethernet interface and my router is running RIP (a distance vector routing protocol). How does split-horizon affect the routing updates?
- Can a single NAT-enabled router allow some users to use NAT and other users on the same Ethernet interface to continue to use their own IP addresses?
- Can I allocate IP addresses from NAT routers outside interface subnet to a dynamic NAT pool?
