network

This command allows selecting whether an interface is logically part of the LAN or part of the WAN.

QoS and NAPT functions handle traffic routed from LAN interfaces to WAN interfaces; port forwarding rules (static NAPT) work only on WAN interfaces; and the default firewall policy prevents inbound packets from WAN interfaces unless solicited by an active connection.

Syntax

network {lan|wan}

Command	Description
lan	Define a LAN interface.
wan	Define a WAN interface.

Default

VLAN interfaces default to LAN; all other interfaces default to WAN.

Command Mode

This command is available in interface configuration context.

Example

This example defines a LAN interface:

(config-data)# interface atm 0/0 
(conf-atm0/0)# network lan