Dell Command Line Reference Guide for the S4048–ON System 9.14.2.5

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ip ospf message-digest-key

Enable OSPF MD5 authentication and send an OSPF message digest key on the interface.

S4048–ON

Syntax
ip ospf message-digest-key keyid md5 key

To delete a key, use the no ip ospf message-digest-key keyid command.

Parameters
keyid
Enter a number as the key ID. The range is from 1 to 255.
key
Enter a continuous character string as the password.
Defaults
No MD5 authentication is configured.
Command Modes
INTERFACE
Command History

This guide is platform-specific. For command information about other platforms, see the relevant Dell EMC Networking OS Command Line Reference Guide.

Version
Description
9.10(0.1)
Introduced on the S6010-ON and S4048T-ON.
9.10(0.0)
Introduced on the S3148.
9.10(0.0)
Introduced on the S6100-ON.
9.8(2.0)
Introduced on the S3100 series.
9.8(1.0)
Introduced on the Z9100-ON.
9.8(0.0P5)
Introduced on the S4048-ON.
9.8(0.0P2)
Introduced on the S3048-ON.
9.7(0.0)
Introduced on the S6000-ON.
9.2(1.0)
Introduced on the Z9500.
9.0.2.0
Introduced on the S6000.
8.3.19.0
Introduced on the S4820T.
9.1(0.0)
Included usage information on maximum number of digest keys per interface.
8.3.11.1
Introduced on the Z9000.
8.3.7.0
Introduced on the S4810.
7.6.1.0
Introduced on the S-Series.
7.5.1.0
Introduced on the C-Series.
pre- 6.1.1.1
Introduced on the E-Series.
Usage Information

You can configure a maximum of six digest keys on an interface. Of the available six digest keys, the switches select the MD5 key that is common. The remaining MD5 keys are unused.

To change to a different key on the interface, enable the new key while the old key is still enabled. Dell EMC Networking OS sends two packets: the first packet authenticated with the old key and the second packet authenticated with the new key. This process ensures that the neighbors learn the new key and communication is not disrupted by keeping the old key enabled.

After the reply is received and the new key is authenticated, delete the old key. Dell EMC recommends keeping only one key per interface.

NOTE: The MD5 secret is stored as plain text in the configuration file with service password encryption. Write down or otherwise record the key. You cannot learn the key once it is configured. Use caution when changing the key.

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