实验目的：比较ospf的5种网络类型，不同的ospf网络类型能否建立邻居？
实验拓扑：
接口如果是串口的话，默认的网络类型是点到点，然而接口如果是以太口的话，默认的网络类型是广播型网络。
R2#show ip ospf int s1/0
Serial1/0 is up, line protocol is up
Internet Address 10.1.1.2/24, Area 0
Process ID 1, Router ID 2.2.2.2, Network Type POINT_TO_POINT, Cost: 64
Transmit Delay is 1 sec, State POINT_TO_POINT,
Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
oob-resync timeout 40
Hello due in 00:00:02
Index 2/2, flood queue length 0
Next 0x0(0)/0x0(0)
Last flood scan length is 1, maximum is 1
Last flood scan time is 0 msec, maximum is 0 msec
Neighbor Count is 1, Adjacent neighbor count is 1
Adjacent with neighbor 1.1.1.1
Suppress hello for 0 neighbor(s)
R3#show ip ospf int fa0/0
FastEthernet0/0 is up, line protocol is up
Internet Address 192.168.1.3/24, Area 0
Process ID 1, Router ID 3.3.3.3, Network Type BROADCAST, Cost: 1
Transmit Delay is 1 sec, State BDR, Priority 1
Designated Router (ID) 2.2.2.2, Interface address 192.168.1.2
Backup Designated router (ID) 3.3.3.3, Interface address 192.168.1.3
Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
oob-resync timeout 40
Hello due in 00:00:01
Index 1/1, flood queue length 0
Next 0x0(0)/0x0(0)
Last flood scan length is 1, maximum is 1
Last flood scan time is 0 msec, maximum is 0 msec
Neighbor Count is 1, Adjacent neighbor count is 1
Adjacent with neighbor 2.2.2.2 (Designated Router)
Suppress hello for 0 neighbor(s)
file://D:\实验拓扑\ospf网络类型.xls
Modify Time : 2008年6月11日 9:47:22 File Size : 16896
本文转自 gehailong 51CTO博客，原文链接：http://blog.51cto.com/gehailong/297374，如需转载请自行联系原作者
