R3204P16-HP Load Balancing Module High Availability Command Reference-6PW101

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As devices of different vendors may achieve VRRP in a different way, when the LB module is
interoperating with devices of other vendors, VRRP packet TTL check may result in dropping packets that
should not be dropped. In this case, you can use the command to disable TTL check on VRRP packets.
Examples
# Disable TTL check on VRRP packets.
<Sysname> system-view
[Sysname] interface Ten-GigabitEthernet 0/0.1
[Sysname-Ten-GigabitEthernet0/0.1] vrrp un-check ttl
vrrp vrid authentication-mode
Syntax
vrrp vrid virtual-router-id authentication-mode { md5 | simple } key
undo vrrp vrid virtual-router-id authentication-mode
View
Interface view
Default level
2: System level
Parameters
virtual-router-id: VRRP group number, which ranges from 1 to 255.
simple: Plain text authentication mode.
md5: Authentication using the MD5 algorithm.
key: Authentication key, which is case sensitive.
• When simple authentication applies, the authentication key is in plain text with a length of 1 to 8
characters.
• When md5 authentication applies, the authentication key is in MD5 cipher text or in plain text and
the length of the key depends on its input format. If the key is input in plain text, its length is 1 to 8
characters, such as 1234567; if the key is input in cipher text, its length must be 24 characters, such
as _(TT8F]Y\5SQ=^Q`MAF4<1!!.
Description
Use the vrrp vrid authentication-mode command to configure authentication mode and authentication
key for a VRRP group to send and receive VRRP packets.
Use the undo vrrp vrid authentication-mode command to restore the default.
By default, authentication is disabled.
Before executing the command, create a VRRP group on an interface and configure the virtual IP address
of the VRRP group.
You may configure different authentication modes and authentication keys for the VRRP groups on an
interface. However, the members of the same VRRP group must use the same authentication mode and
authentication key.
Related commands: display vrrp.