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1>》在R1和R2上分別開啟OSPF進(jìn)程

2》在R1上配置認(rèn)證密碼
????? R1(config-if)#ip ospf authentication-key cisco
3》在R2上配置認(rèn)證密碼
????? R2(config-if)#ip ospf authentication-key cisco
4》實(shí)驗調(diào)試
◆R1#show ip ospf interface s0/3/0
Serial0/3/0 is up, line protocol is up
? Internet address is 192.168.12.1/24, Area 0
? Process ID 1, Router ID 1.1.1.1, Network Type POINT-TO-POINT, Cost: 781
? Transmit Delay is 1 sec, State POINT-TO-POINT, Priority 0
? No designated router on this network
? No backup designated router on this network
? Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
??? Hello due in 00:00:04
? 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 2.2.2.2
? Suppress hello for 0 neighbor(s)
? Simple password authentication enabled?? 這一行信息表明該接口啟用了簡單口令認(rèn)證。
◆R1#show ip ospf
?Routing Process "ospf 1" with ID 1.1.1.1
?Supports only single TOS(TOS0) routes
?Supports opaque LSA
?SPF schedule delay 5 secs, Hold time between two SPFs 10 secs
?Minimum LSA interval 5 secs. Minimum LSA arrival 1 secs
?Number of external LSA 0. Checksum Sum 0x000000
?Number of opaque AS LSA 0. Checksum Sum 0x000000
?Number of DCbitless external and opaque AS LSA 0
?Number of DoNotAge external and opaque AS LSA 0
?Number of areas in this router is 1. 1 normal 0 stub 0 nssa
?External flood list length 0
??? Area BACKBONE(0)
??????? Number of interfaces in this area is 2
??????? Area has simple password authentication 這一行表明區(qū)域0采用了簡單口令認(rèn)證。
??????? SPF algorithm executed 2 times
??????? Area ranges are
??????? Number of LSA 2. Checksum Sum 0x00dc42
??????? Number of opaque link LSA 0. Checksum Sum 0x000000
??????? Number of DCbitless LSA 0
??????? Number of indication LSA 0
??????? Number of DoNotAge LSA 0
??????? Flood list length 0?

注意：如果一邊開啟了簡單口令認(rèn)證一邊沒有則在此區(qū)域，OSPF協(xié)議不能正常工作，或者兩邊密碼不一致也是一樣的，這個大家可以進(jìn)行簡單的驗證。

?????? 謝謝大家！！

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轉(zhuǎn)載于:https://blog.51cto.com/xuzhiming302/531913

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