Configuring ICMP Redirects

Configuring ICMP Redirects

Purpose

Disable or enable sending ICMP redirect packets to the switch CPU for processing, at a global level and at an interface level. By default, sending ICMP redirects is enabled globally and on all interfaces. Disabling sending ICMP redirects can reduce CPU usage in certain deployments.

Commands

For information about...

Refer to page...

 

 

ip icmp redirect enable

19-23

 

 

show ip icmp redirect

19-24

 

 

ip icmp redirect enable

Use this command to enable or disable sending ICMP redirects to the CPU for processing on a global level or on a specific interface. The no form of this command disables sending ICMP redirects to the CPU.

Syntax

ip icmp redirect enable

no ip icmp redirect enable

Parameters

None.

Defaults

By default, sending ICMP redirects to the CPU is enabled globally and on all interfaces.

Mode

Router global configuration mode: C3(su)‐>router(Config)#

Interface configuration mode: C3(su)‐>Router1(Config‐if(Vlan 1))#

Usage

You can use this command in router global configuration mode to enable or disable sending ICMP redirects globally on the switch.

You can use this command in router interface configuration mode to enable or disable sending ICMP redirects only on specific interfaces.

Examples

This example disables sending ICMP redirects on the interface VLAN 5.

C3(su)->router#configure

C3(su)->router(Config)#interface vlan 5

C3(su)->Router1(Config-if(Vlan 5))# no ip icmp redirect enable

SecureStack C3 Configuration Guide 19-23

Page 569
Image 569
Enterasys Networks 9034313-07 manual Configuring Icmp Redirects, Ip icmp redirect enable