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ccna 200 301 syllabus examples courses pepperdine.to authenticate. When the router detects that all of its neighbors have accepted the new password, it stops sending the old password packets. Use the following command on router R1 to start MD5 authenticationOn router R1, use the following command to initiate MD5 authentication.R1(config)#int sl/1 R1(config~if)#noip ospf authentication-key Cancels the previous plaintext password. Configuration R1(config-if)#ip ospf message-digest-key 1 md5 cisco MD5 password and password IDOR1(config-if)#intfa 0/0 R1(config~if)#noip ospf authentication-key R1(config-if)#ip ospf message-digest-key 1 md5 cisco R1(config~if)#router ospf 1R1 (config-router)#area 0 authentication message-digest area. Use MD5 authentication.R2(config)#int sl/0 R2(config-if)#noipospf authentication-key R2(config-if)#ip ospf message-digest-key 1 md5 cisco R2(config-if)#intfa 0/0 R2( config-if)#noipospf authentication-key R2(config-if)#ip ospf message-digest-key 1 md5 cisco R2(config-if)#router ospf 1 R2(config-router)# area 0 authentication message-digestR3(config)#int fa0/0 R3 (config-if)#noip ospf authentication-key R3(config-if)#ip ospf message-digest-key 1 md5 cisco R3 (config-if)#router ospf 1 R3(config-router)#area 0 authentication message-digestAfter the configuration is complete, the adjacency of Rl, R2, and R3 is restored to normal, and the routes can now interact normally.Q Note: When configuring the router password, ios ignores the space before the password, but the space after the password is counted, so you should be especially careful when entering the password, otherwise it is very difficult to troubleshoot.832 OSPF Default Route...II In Figure 8-2-5, assume that R1 is connected to the Internet through an ISP, as shown in Figure 8-3-1. Router R1 is configured with a route to the Internet to