NAT-(NETWORK ADDRESS TRANSLATION)

NETWORK ADDRESS TRANSLATION

Types of NAT
1-Static
2-Dyanamic
3-PAT(Port Address Translation)

1-Static

Router(config)#ip nat inside source static 10.0.0.2 20.0.0.10
Router(config)#ip nat inside source static 10.0.0.3 20.0.0.11
Router(config)#int fa0/0
Router(config)#ip access
Router(config)ip nat in
Router(config)#exit

Router(config)#int s0/0/0
Router(config)ip nat outside
Router(config)#exit


For Remove

Router(config)#no ip nat inside source static 10.0.0.2 20.0.0.10
Router(config)#no ip nat inside source 10.0.0.3 20.0.0.11



2-Dyanamic

Router(config)#ip nat pool abc 20.0.0.40 20.0.0.50 netmask 255.0.0.0
Router(config)#ip nat inside source list 1 pool abc
Router(config)#Access-list 1 permit 10.0.0.0  0.255..255.255
Router(config)#int fa0/0
Router(config)#int nat in
Router(config)#exit
Router(config)#int s0/0/0
Router(config)#ip nat outside
Router(config)#exit

To Remove NAT

Router(config)#int fa0/0
Router(config)#no ip nat in
Router(config-if)#exit
Router(config)#ints0/0/0
Router(config-if)# no ip nat outside
Router(config-if)#exit


2-PAT