interface Ethernet0/0
nameif outside
security-level 0
ip address 1.4.3.126 255.255.255.252
!
interface Ethernet0/1
nameif inside
security-level 100
ip address 10.0.0.1 255.255.255.252
!
global (outside) 1 interface
nat (inside) 0 access-list nonat
nat (inside) 1 0.0.0.0 0.0.0.0
供参考