ip ospf transmit-delay seconds
ip ospf priority number
ip ospf hello-interval seconds
ip ospf dead-interval seconds
ip ospf authentication-key password
2.2.5 Configure OSPF authentication
Cisco router supports message-digest hashing algorithm to guarantee the integrity of
OSPF packets and authenticate between the routers. The key is set on interface by the
following command
Router(config-if)#ip
The key-id is an identifier and takes the value in the range of 1 through 255.The
encryption type field refers to the type of encryption, where 0 means none and 7 means
proprietary. The key is an alphanumeric password up to sixteen characters. Neighbor
routers must use the same key identifier with the same key value.
After the key is configured, authentication must be enabled in global configuration
mode
Router(config)#router ospf process-id
Router(config-router)#area area-id authentication message-
2.2.6 No Form
To turn off any feature of OSPF routing, for example to turn off network 10.12.0.4
255.255.255.252 area 0, give the next command:
Router(config-router)#no network 10.12.0.4 255.255.255.252
area 0
To turn off RIP, use the no router rip command:
Router(config)#no router ospf process-id
Set the estimated number of seconds it
takes to transmit a link state update packet
on an OSPF interface.
Set router priority to help determine the
OSPF designated router for a network.
Specify the length of time, in seconds,
between the hello packets that a router
sends on an OSPF interface.
Set the number of seconds that a router's
hello packets must not have been seen
before its neighbors declare the OSPF
router down.
Assign a specific password to be used by
neighboring OSPF routers on a network
segment that is using OSPF's simple
password authentication.
ospf
message-digest-key
encryption-type key
digest
12
key-id
md5
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