22 ip ospf mtu – CANOGA PERKINS CanogaOS Command Reference User Manual

Page 259

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CanogaOS Command Line Reference

Revision 1.02

Proprietary & Confidential Canoga Pertkins Metro Ethernet Switches

Page 259 of 855

updating them with the new key. Rollover stops once the local system finds that all its neighbors know
the new key. The system detects that a neighbor has the new key when it receives packets from the
neighbor authenticated by the new key.
After all neighbors have been updated with the new key, the old key should be removed. In this
example, you would enter the following:
interface eth-0-1
no ip ospf message-digest-key 100
Then, only key 101 is used for authentication on Ethernet interface 1.
We recommend that you not keep more than one key per interface. Every time you add a new key, you
should remove the old key to prevent the local system from continuing to communicate with a hostile
system that knows the old key. Removing the old key also reduces overhead during rollover.


Examples

The following example sets a new key 19 with the password 8ry4222:
interface eth-0-1
ip ospf message-digest-key 10 md5 xvv560qle
ip ospf message-digest-key 19 md5 8ry4222


Related Commands

area authentication
ip ospf authentication

15.22 ip ospf mtu

To set the MTU value when sending Database Descriptor (DBD) packets, use the ip ospf mtu
command in interface configuration mode. To restore a default value, use the no form of this
command.


Command Syntax

ip ospf mtu mtu-value
no ip ospf mtu

mtu-value

An MTU value in the range from 576 to 65535.


Default

1500.


Command Mode

Interface configuration


Usage

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