本文主要是介绍OSPF区域MD5认证，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！
1、区域md5认证
a、在区域内验证
b、配置命令
验证方式： area 区域号 authentication message-digest
简单密码：ip ospfmessage-digest-key 1 md5密码
查看认证方式：show ipospf interface
c、认证成功，能建立邻居关系
en
conf t
hostname R2int loopback 0
ip address 2.2.2.2 255.255.255.0
no shutdown
exitrouter ospf 1
network 192.168.3.0 0.0.0.255 area 0
network 192.168.2.0 0.0.0.255 area 0
network 2.2.2.0 0.0.0.255 area 0
area 0 authentication message-digest
exitint f0/1
ip address 192.168.2.2 255.255.255.0
ip ospf message-digest-key 1 md5 abc
no shutdown
exitint f0/0
ip address 192.168.3.2 255.255.255.0
no shutdown
exit
end
R1#show ip ospf interface
Loopback0 is up, line protocol is up
Internet address is 1.1.1.1/24, Area 0
ProcessID 1, Router ID 1.1.1.1, Network Type LOOPBACK, Cost: 1
Loopback interface is treated as a stub Host
FastEthernet0/0 is up, line protocol is up
Internet address is 192.168.1.2/24, Area 0
Process ID 1, Router ID 1.1.1.1, Network Type BROADCAST, Cost: 1
Transmit Delay is 1 sec, State WAITING, Priority 1
Nodesignated router on this network
Nobackup designated router on this network
Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
Hello due in 00:00:00
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 0, Adjacent neighbor count is 0
Suppress hello for 0 neighbor(s)
Message digest authentication enabled
No key configured, using default key id 0
FastEthernet0/1 is up, line protocol is up
Internet address is 192.168.2.1/24, Area 0
Process ID 1, Router ID 1.1.1.1, Network Type BROADCAST, Cost: 1
Transmit Delay is 1 sec, State WAITING, Priority 1
Nodesignated router on this network
Nobackup designated router on this network
Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
Hello due in 00:00:00
Index 3/3, 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 0
Suppress hello for 0 neighbor(s)
Message digest authentication enabled
Youngest key idis 1
解释：Message digest authentication enabled认证方式启动
R1#show ip ospf database
OSPF Router with ID (1.1.1.1) (Process ID 1)
Router Link States (Area 0)
Link ID ADV Router Age Seq# Checksum Link count
1.1.1.1 1.1.1.1 95 0x80000005 0x00f2eb 3
2.2.2.2 2.2.2.2 95 0x80000005 0x00f7d7 3
Net Link States (Area 0)
Link ID ADV Router Age Seq# Checksum
192.168.2.2 2.2.2.2 95 0x80000001 0x006929
R1#show ip ospf neighbor
Neighbor ID Pri State Dead Time Address Interface
2.2.2.2 1 FULL/DR 00:00:38 192.168.2.2 FastEthernet0/1
解释：能建立邻居关系，认证成功。
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