TASK 4.2 bad Authentication??

my configurations are as under;

key chain 1
key 1
key-string CISCO

interface FastEthernet0/0
ip address
ip rip authentication mode md5
ip rip authentication key-chain 1

router rip
version 2
passive-interface default
no passive-interface FastEthernet0/0
no passive-interface FastEthernet0/1
no auto-summary


Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to, timeout is 2 seconds:
Success rate is 100 percent (5/5), round-trip min/avg/max = 84/186/448 ms

i am getting the following output for 'debug ip rip'

RIP: received packet with MD5 authentication
RIP: ignored v2 packet from (invalid authentication)
i have checked for typos like space after password etc but still R3 is not authenticating to BB2.what am i missing??


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