RIP Authentication

Konfigurasi di R1 :
key chain RIP
 key 1
   key-string CISCO
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archive
 log config
  hidekeys
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interface Loopback0
 ip address 1.1.1.1 255.255.255.255
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interface FastEthernet0/0
 description #link ke R3#
 ip address 13.13.13.1 255.255.255.0
 duplex auto
 speed auto
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interface Serial0/0
 description #link ke R2#
 ip address 12.12.12.1 255.255.255.0
 ip rip authentication mode md5
 ip rip authentication key-chain RIP
 clock rate 2000000
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interface FastEthernet0/1
 no ip address
 shutdown
 duplex auto
 speed auto
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router rip
 version 2
 network 0.0.0.0
 no auto-summary