H3C Technologies H3C S3600 Series Switches - Manual (Page 350)

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To do... Use the command... Remarks
Enter system view system-view —
Enter OSPF view
ospf [ process-id [ router-id
router-id ] ]
—
Enter OSPF area view area area-id —
Configure the authentication mode
of the OSPF area authentication-mode { simple
| md5 } Required
Not configured by default
Return to OSPF view quit —
Return to system view quit —
Enter interface view
interface interface-type
interface-number
—
Configure the authentication mode
of the OSPF interface
ospf authentication-mode
{ simple password | md5 key-id
key }
Optional
By default, OSPF packets
are not authenticated on an
interface.
z OSPF supports packet authentication and receives only those packets that are successfully
authenticated. If packet authentication fails, no adjacencies will be established.
z The authentication modes for all routers in an area must be consistent. The authentication
passwords for all routers on a network segment must also be consistent.
Configuring the MTU Field in DD Packets
By default, an interface uses value 0 instead of its actual MTU value when transmitting DD packets.
After the following configuration, the actual interface MTU is filled in the MTU field in DD packets.
Follow these steps to configure to fill the MTU field when an interface transmits DD packets:
To do... Use the command... Remarks
Enter system view system-view —
Enter interface view
interface interface-type
interface-number
—
Enable the interface to fill in the
MTU field when transmitting
DD packets
ospf mtu-enable
Required
By default, the MTU value is 0
when an interface transmits DD
packets. That is, the actual
MTU value of the interface is
not filled in.
Enabling OSPF Logging of Neighbor State Changes
Follow these steps to enable OSPF logging of neighbor state changes: