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
GLBP group number in the range from 0 to 1023.
group-number
Specifies an authentication string. The number of
characters in the command plus the text string must
not exceed 255 characters.
text
string
Message Digest 5 (MD5) authentication.
md5
Specifies the secret key for MD5 authentication. The
key string cannot exceed 100 characters in length.
We recommend using at least 16 characters.
key-string key
(Optional) Unencrypted key. If no prefix is specified,
the key is unencrypted.
0
(Optional) Encrypted key.
7
Identifies a group of authentication keys.
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.
Command Reference, Cisco IOS XE Everest 16.5.1a (Catalyst 3650 Switches)
149
glbp authentication
Содержание Catalyst 3650 Series
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