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Chapter 8: AI2524 Protocol Configuration Steps
August 1997 Page 8-3
2524UM
6. Set the number of seconds that a device's hello packets must not
have been seen before its neighbors declare the OSPF route
down.
ip ospf dead-interval
seconds
7. Assign a specific password to be used by neighboring OSPF rout-
ers on a network segment that is using OSPF's simple password
authentication.
ip ospf authentication-key
key
8. Enable OSPF MD5 authentication.
ip ospf message-digest-key
key id
md5 key
Configure OSPF over Different Physical Networks
OSPF classifies different media into three types of networks by de
fault:
z
Broadcast networks (Ethernet, Token Ring, FDDI)
z
Nonbroadcast multi-access networks (SMDS, Frame Relay, X.25
z
Point-to-point networks (HDLC, PPP)
Configure your network as either a broadcast or a nonbroadcast multi-
access network.
X.25 and Frame Relay provide an optional broadcast capability that
can be configured in the map to allow OSPF to run as a broadcast net-
work.