Dynamic NAT vs Static NAT
Static and Dynamic NAT Both static and dynamic NAT requires that enough public addresses are available to satisfy the total number of simultaneous user sessions. Static NAT Static NAT also called inbound mapping, is the process of mapping an unregistered IP address to a registered IP address on a one-to-one basis. The unregistered or mapped IP address is assigned with the same registered IP address each time the request comes through. This process is particularly useful for web servers or hosts that must have a consistent address that is accessible from the Internet. Simply, Static NAT enables a PC on a stub domain to maintain an assigned IP address when communicating with other devices outside its network or the Internet. Static NAT configuration commands example: R1# config t R1(config)# ip nat inside source static 10.10.10.2 212.165.200.123 R1(config)# interface fa0/0 10.10.10.1 255.255.255.0 R1(config)# ip nat inside R1(config)# interface se0/0 192.168.1.1 255.255.255.0 R1(confi