IPv4 NAT Static Configuration Example

This example steps you through an IPv4 NAT static configuration for both NAT and NAPT translation methods. See IPv4 NAT Static Configuration Example for a depiction of the IPv4 NAT static configuration packet flow.

Our static NAT configuration example configures two clients: Client1 with NAT translation and Client2 with NAPT translation. Both clients are on the internal private network VLAN 10 interface and communicate with Server1 over the external public network VLAN 100 interface. NAT is enabled on VLAN 10 as an inside interface. NAT is enabled on VLAN 100 as an outside interface. These are the only VLANs over which translation occurs for the static portion of this configuration example.

To configure Client1 on the NAT router, we enable static NAT translation of the inside source address specifying local IP address 200.1.1.50 and global IP address 200.1.1.1. Server1 will only see Client1 as IP address 200.1.1.1.

To configure Client2 on the NAT router, we enable static NAT translation of the inside source address specifying local IP address 200.1.1.60:35000 and global IP address 200.1.1.1:80. Server1 will only see Client2 as IP address 200.1.1.1:80.