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Configure VBRP Network Authentication

VBRP has two modes, that is, simple text authentication and MD5 authentication. The set length of the simple text authentication cannot exceed eight authentication words. The set length of the MD5 authentication is the authentication word not exceeding 64 bits.

Configuration Condition

Before configuring the VBRP basic functions, first complete the following task:

  • Configure the VBRP group

Configure VBRP Simple Text Authentication

Configure the VBRP authentication to check and verify the validity of the VBRP packet. We can use the following command to configure the VBRP simple text authentication mode.

Table 7–6 Configure the VBRP simple text authentication

Step

Command

Description

Enter the global configuration mode

configure terminal

-

Enter the interface configuration mode

interface interface-name

Mandatory

Configure the VBRP simple text authentication

standby group-number authentication { string }

Mandatory

The configured authentication word is string and the length cannot exceed 8-bit authentication word.

By default, do not enable the simple text authentication.

Configure VBRP MD5 Authentication

Configure the VBRP authentication to check and verify the validity of the VBRP packet. We can use the following command to configure the VBRP MD5 authentication mode.

Table 7–7 Configure the VBRP MD5 authentication

Step

Command

Description

Enter the global configuration mode

configure terminal

-

Enter the interface configuration mode

interface interface-name

Mandatory

Configure the VBRP MD5 authentication

standby group-number authentication { md5 { key-id key-identifier key-string key-string } | { key-string key-string } }

Mandatory

Configure the MD5 network authentication and the length cannot exceed 8-bit authentication word.

By default, do not enable the MD5 authentication.