A comprehensive, CCNA-focused guide to Network Address Translation — why NAT exists, the four address terms (inside local, inside global, outside local, outside global) made memorable, the three flavors (static NAT, dynamic NAT, and PAT/overload) with real Cisco IOS configuration and verification, the inside/outside interface gotcha that breaks every first attempt, how to troubleshoot with show ip nat translations and debug, and NAT's bigger-picture role: the security myths, broken end-to-end connectivity, carrier-grade NAT, NAT64, and how IPv6 changes the story. Built around exam topic 4.6 with commands you can lab.
Pat
-
Network Address Translation (NAT): A CCNA-Focused Guide -
CCNA: NAT and PAT — Network Address Translation in Depth Static NAT, dynamic NAT, and PAT explained from first principles — inside/outside local/global address terminology, full Cisco IOS configuration, NAT translation table interpretation, debug ip nat output, and troubleshooting every common failure mode.