rpf-mode

Enables strict or loose unicast Reverse Path Forwarding (uRPF) mode on FastIron ICX devices.
Syntax
rpf-mode [ strict [ urpf-exclude-default ] | loose [urpf-exclude-default ] ]
no rpf-mode [ strict [ urpf-exclude-default ] | loose [urpf-exclude-default ] ]
Command Default

uRPF mode is not enabled.

Parameters
strict
Specifies uRPF strict mode.
loose
Specifies uRPF loose mode. This mode allows all packets to pass the uRPF check.
urpf-exclude-default
Excludes the default route for uRPF source IP lookup.
Modes

Interface configuration mode

Usage Guidelines

You must enable uRPF at the global level before enabling the mode (strict or loose). This command is applicable only to the Layer 3 physical interface and Layer 3 VE interfaces.

The loose option allows all packets to pass through. Choose the loose option along with the urp-exclude-default option to subject the packets to uRPF check.

The no form of the command disables uRPF mode.

Examples

The following example sets the Reverse Path Forwarding mode to strict mode. 

device(config)# interface ethernet 1/1/3
device(config-if-e1/1/3)# rpf-mode strict
History
Release version Command history
08.0.30 This command was introduced.
Parent topic: Commands O, P, Q, R, and Sa through Sh