NAT in Cisco Router (PAT)

1. Create a nat pool with single public ip address
router(config)#ip nat pool shrestha 175.176.229.33 175.176.229.33 net 255.255.255.0

2. Create access list permitting the local LAN
router(config)#access-list 1 permit 192.168.100.0 0.0.0.255

3. Map access list 1 to new pool using overload(PAT)
router(config)#ip nat inside source list 1 pool shrestha overload

4. Go to public ip interface and execute following command
ip nat outside

5. Go to local lan interface and execute following command
ip nat inside