set interface null0

Drops traffic when the null0 statement becomes the active setting as determined by the route-hop selection process.
Syntax
set interface null0
no set interface null0
Command Default

The configuration to direct the traffic to the null0 interface is not configured.

Modes

Route map configuration mode

Usage Guidelines

This command sends the traffic to the null0 interface, which is the same as dropping the traffic.

The no form of this command deletes the matching filter from the ACL.

Examples

The following example configures the PBR policy to send all traffic from 192.168.1.204/32 to the null interface, thus dropping the traffic instead of forwarding it.

device# configure terminal
device(config)# ip access-list standard 56
device(config-std-ipacl-56)# permit 192.168.1.204 0.0.0.0
device(config-std-ipacl-56)# exit
device(config)# route-map file-13 permit 56
device(config-routemap file-13)# match ip address 56
device(config-routemap file-13)# set interface null0
device(config-routemap file-13)# exit