400 | Open Shortest Path First (OSPFv2)
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ip ospf message-digest-key
Enable OSPF MD5 authentication and send an OSPF message digest key on the interface.
Syntax
ip ospf message-digest-key keyid md5 key
To delete a key, use the no ip ospf message-digest-key keyid command.
Parameters
 
Defaults
No MD5 authentication is configured.
Command Modes
INTERFACE
Command
History
Usage
Information
To change to a different key on the interface, enable the new key while the old key is still enabled. The 
FTOS will send 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, you must delete the old key. Dell Force10 
recommends keeping only one key per interface.
ip ospf mtu-ignore
Disable OSPF MTU mismatch detection upon receipt of database description (DBD) packets.
Syntax
ip ospf mtu-ignore
To return to the default, use the no ip ospf mtu-ignore command.
Defaults
Enabled
Command Modes
INTERFACE
Command
History
keyid
Enter a number as the key ID.
Range: 1 to 255.
key
Enter a continuous character string as the password.
Version 8.3.16.1 Introduced on MXL 10/40GbE Switch IO Module
Note: The MD5 secret is stored as plain text in the configuration file with service password 
encryption. 
Version 8.3.16.1 Introduced on MXL 10/40GbE Switch IO Module