NAT, Three methods: 1, Static NAT (one-on-one) 2, dynamic NAT (many-to-many) 3, port multiplexer PAT (many-to-one) 1, static configuration (1) configure the external interface IP address (2) internal interface IP address configuration (3) in-house local and global address internal address translation between router (config) # ip nat inside source static local-ip global-ip (4), including the [...]