IPV6 and broadcasts

Unanswered Question
Nov 2nd, 2009

Hi all, I read that ipv6 does not broadcast, in which case how does it find the other local hosts and gateway on the lan ?

I have this problem too.
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Giuseppe Larosa Mon, 11/02/2009 - 12:02

Hello Carl,

this is one of the most interesting aspects in IPv6.

IPv6 has built-in multicast address support.

So all processes like neighbor discovery use ICMPv6 messages with special multicast destinations in order to:

find possible duplicated address

to find out the MAC address of a neighbor (substitutes IPv4 ARP)



Hope to help


carl_townshend Mon, 11/02/2009 - 15:06

hi there

can you ellaborate on this?

if it uses multicast, switches still treat this as broadcast so wont it effectivly flood the network still ?


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