How do you clear cisco interface configuration? Using the “no” command on each line to remove the configuration can be tedious and cumbersome. Use the default command in global configuration mode to clear the interface configuration and restore the interface to the defaults.
Router(config)# default interface ? Async Async interface BVI Bridge-Group Virtual Interface CDMA-Ix CDMA Ix interface CTunnel CTunnel interface Dialer Dialer interface Ethernet IEEE 802.3 FastEthernet FastEthernet IEEE 802.3 Group-Async Async Group interface Lex Lex interface Loopback Loopback interface MFR Multilink Frame Relay bundle interface Multilink Multilink-group interface Null Null interface Tunnel Tunnel interface Vif PGM Multicast Host interface Virtual-PPP Virtual PPP interface Virtual-Template Virtual Template interface Virtual-TokenRing Virtual TokenRing Vlan Catalyst Vlans range interface range command
TIP: You can combine the range command to clear more than one interface or a select group of interfaces at a time.
