OSPF - Routing Protocols and Concepts - page 510

Labs and Activities

Command Reference

In the table that follows, record the command, including the correct router prompt , that fits the
description. Fill in any blanks with the appropriate missing information.

Command Description

Router(config)# router ospf 123 Turns on OSPF process number 123. The

process ID is any value between 1 and
65,535 . The process ID does not equal the
OSPF area.

Router(config-router)# network OSPF advertises interfaces, not net

172.16.10.0 0.0.0.255 area 0 works. Uses the wildcard mask to determine

which interfaces to advertise. The command
shown reads: Any interface with an address
of 172.16.10.x is to be put into Area 0.

Router(config-if)# ip ospf priority 50 Changes the OSPF priority for an interface

to 50.

Router(config-if)# bandwidth 128 Changes the bandwidth of an interface to

128 kbps.

Router(config-if)# ip ospf cost 1564 Changes the cost to a value of 1564.

Router(config-if)# ip ospf hello-interval 20 Changes the Hello interval timer to

20 seconds.

Router(config-if)# ip ospf dead-interval 80 Changes the Dead interval timer to

80 seconds.

Router(config)# ip route 0.0.0.0 0.0.0.0 s0/0/0 Creates a static default route pointing out

the Serial 0/0/0 interface. This route will
have an administrative distance of 0 .

Router(config-router)# default-information Sets the default route to be propagated to all

originate OSPF routers.

Router# show ip protocol Displays parameters for all routing

protocols running on the router.

Router# show ip route Displays the complete IP routing table.

Router# show ip ospf Displays basic OSPF information for all

OSPF processes running on the router.

Router# show ip ospf interface Displays OSPF information as it relates to

all interfaces.

Router# show ip ospf neighbor List all the OSPF neighbors and their states.

Router# show ip ospf neighbor detail Displays a detailed list of neighbors.