ip nat inside source list LOCAL interface Loopback0 overload
!
ip access-list extended LOCAL
remark WORK FOR LOCAL TO PUBLIC TO LOCAL
permit ip host 10.1.1.4 host 10.1.1.3
!
ip access-list extended INTERNET
remark WORK FOR LOCAL TO INTERNET
deny ip 10.0.0.0 0.255.255.255 10.0.0.0 0.255.255.255
permit ip 10.1.1.0 0.0.0.255 any
!
发现不做红色这些也可以实现,但不是转换为2.2.2.2,而是外网接口地址