ff02::1 and ff02::2

On a Linux machine, I tried "ping6 ff02::1%2" and a large number of IP addresses responded to it. This is the neighbour discovery packet so all nodes with IPv6 enabled will answer.

Secondly, I tried "ping6 ff02::2%2" and only one single IP address responded to it which was the default router in the network. In fact, ff02::2 is the router discovery packet.

Those who are new to IPv6 will find them lot of funs.

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