I just want to ask in order for router to determine if it is active hsrp router, it must compare its id with those of others in the group.. That means that every router in hsrp group must send hello to each other at start up.
But this was not the case .
I connected three routers D4,C3, and A20 to switch. a window xp running wireshark is also connectedto switch.
D4 e0 is 18.104.22.168
c3 e0 is 22.214.171.124
A20 e0 is 126.96.36.199
win xp has 188.8.131.52
i attached the file from wireshark .
The first hello was from D4 (184.108.40.206) claiming to be active. How come D4 knows it is active in hsrp though it did not receive any hello to compare its id with others in the group.
One can argue at start up, every router in hsrp group think it is active. But if this were the case, then we don't see any other hellos from C3(220.127.116.11) and A20( 18.104.22.168) claiming to be active at start up in the attachment
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