All About Networking

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-i...

List of conditions:- TYPES:- 1-Standard:1-99 2-Extended:100-199 1-Standard                   -Require source IP add.                   -Apply on destination router.                   -Out band List 2-Extended                   -Require source IP & destination IP.                   -Apply on source Router.                   -Inbound List. ICMP-Internet control Message Protocol Router(config)#access-list 4 deny 30.0.0.3 Router(config)#access-list 4 permit any Ro...