vrrp un-check ttl

Function

The vrrp un-check ttl command disables the device from checking the TTL value in VRRP Advertisement packets.

The undo vrrp un-check ttl command enables the device to check the TTL value in VRRP Advertisement packets.

By default, the system checks the TTL value in VRRP Advertisement packets.

Format

vrrp un-check ttl

undo vrrp un-check ttl

Parameters

None

Views

Interface view

Default Level

2: Configuration level

Usage Guidelines

The device checks the TTL value in received VRRP Advertisement packets. If the TTL value in a VRRP Advertisement packet is not 255, the device discards the VRRP Advertisement packet and generates a log about the VRRP Advertisement packet error.

On certain networks, especially on a network where the device interworks with non-Huawei devices, valid packets may be discarded if TTL check is enabled. You can configure the device not to check the TTL value in VRRP Advertisement packets.

Example

# Disable the switch from checking the TTL value in VRRP Advertisement packets on VLANIF 100.

<HUAWEI> system-view
[HUAWEI] interface vlanif 100
[HUAWEI-Vlanif100] vrrp un-check ttl

# Disable the switch from checking the TTL value in VRRP Advertisement packets on GE0/0/1.

<HUAWEI> system-view
[HUAWEI] interface gigabitethernet 0/0/1
[HUAWEI-GigabitEthernet0/0/1] undo portswitch
[HUAWEI-GigabitEthernet0/0/1] vrrp un-check ttl