ip ospf message digest key md5
Enterasys C3 Configuration Guide 27-11
Defaults
None.
Mode
Interface configuration: C3(su)->router(Config-if(Vlan 1))#
Usage
This password is used as a “key” that is inserted directly into the OSPF header in routing protocol
packets. A separate password can be assigned to each OSPF network on a per-interface basis.
All neighboring routers on the same network must have the same password configured to be able
to exchange OSPF information.
Example
This example shows how to enables an OSPF authentication key on the VLAN 1 interface with the
password “yourpass”:
C3(su)->router(Config)#interface vlan 1
C3(su)->router(Config-if(Vlan 1))#ip ospf authentication-key yourpass
ip ospf message digest key md5
Use this command to enable or disable OSPF MD5 authentication on an interface. This validates
OSPF MD5 routing updates between neighboring routers. The no form of this command disables
MD5 authentication on an interface.
Syntax
ip ospf message-digest-key keyid md5 key
no ip ospf message-digest-key keyid
Parameters
Defaults
None.
Mode
Interface configuration: C3(su)->router(Config-if(Vlan 1))#
Example
This example shows how to enable OSPF MD5 authentication on the VLAN 1 interface, set the key
identifier to 20, and set the password to “passone”:
C3(su)->router(Config)#interface vlan 1
C3(su)->router(Config-if(Vlan 1))#ip ospf message-digest-key 20 md5 passone
keyid Specifies the key identifier on the interface where MD5 authentication is
enabled. Valid values are integers from 1 to 255.
key Specifies a password for MD5 authentication to be used with the keyid. Valid
values are alphanumeric strings of up to 16 characters.
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