Glbp Authentication - Cisco Catalyst 3650 series Command Reference Manual

glbp authentication

To configure an authentication string for the Gateway Load Balancing Protocol (GLBP), use the glbp
authentication command in interface configuration mode. To disable authentication, use the no form of this
command.
glbp group-numberauthentication {text string| md5 {key-string [0| 7] key| key-chain name-of-chain}}
no glbp group-number authentication {text string| md5 {key-string [0| 7] key| key-chain name-of-chain}}
Syntax Description
group-number
text
md5
key-string key
0
7
key-chain name-of-chain
Command Default
No authentication of GLBP messages occurs.
Command Modes
Interface configuration (config-if)
Usage Guidelines
The same authentication method must be configured on all the devices that are configured to be members of
the same GLBP group, to ensure interoperation. A device will ignore all GLBP messages that contain the
wrong authentication information.
If password encryption is configured with the service password-encryption command, the software saves
the key string in the configuration as encrypted text.
string
Command Reference, Cisco IOS XE Everest 16.5.1a (Catalyst 3650 Switches)
GLBP group number in the range from 0 to 1023.
Specifies an authentication string. The number of
characters in the command plus the text string must
not exceed 255 characters.
Message Digest 5 (MD5) authentication.
Specifies the secret key for MD5 authentication. The
key string cannot exceed 100 characters in length.
We recommend using at least 16 characters.
(Optional) Unencrypted key. If no prefix is specified,
the key is unencrypted.
(Optional) Encrypted key.
Identifies a group of authentication keys.
glbp authentication
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