Hop-Limit - Cisco 300 Series Cli Manual

Stackable managed switches

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The following example defines an ND Inspection policy named policy1, places the

switch in ND Inspection Policy Configuration mode, and enables the switch to drop

messages with no or invalid options or an invalid signature:

switchxxxxxx(config)#

switchxxxxxx(config-nd-inspection)#

switchxxxxxx(config-nd-inspection)# exit

25.12 hop-limit

To enable the verification of the advertised Cur Hop Limit value in RA messages

within an IPv6 RA Guard policy, use the hop-limit command in RA Guard Policy

Configuration mode. To return to the default, use the no form of this command.

hop-limit {[maximum {

no hop-limit [maximum] [minimum]

value argument. Range 1-255. The value of the high boundary must be

equal or greater than the value of the low boundary.

maximum disable—Disables verification of the high boundary of the

hop-count limit.

the value argument. Range 1-255.

minimum disable—Disables verification of the lower boundary of the

hop-count limit.

Default Configuration

Policy attached to port or port channel: the value configured in the policy attached

to the VLAN.

Policy attached to VLAN: global configuration.

ipv6 nd inspection policy policy1

drop-unsecure

| disable}] [minimum {

—Verifies that the hop-count limit is less than or equal to the

—Verifies that the hop-count limit is greater than or equal to

OL-32830-01 Command Line Interface Reference Guide

IPv6 First Hop Security

| disable}]}