NAT的三种方式：
一、端口NAT
acces-list 1 permit IP/Mask
ip nat inside source list “number” interface fastethernet overload
二、静态NAT
ip nat inside sourece static IP
三、动态NAT—以地址池的方式来对于NAT映射
access-list “number” permit IP/Maks
ip nat pool cisco IP~IP netmask Maks
ip nat inside sourece list "number" pool cisco overload
转播
