What does a unicast prefix-based IPv6 multicast address start with?
A.
FF80
B.
FF3
C.
FF
D.
FF7
Explanation:
From RFC 3306, the following are a few examples of the structure of unicast prefix-based
multicast addresses.
– Global prefixes – A network with a unicast prefix of
3FFE:FFFF:1::/48 would also have a unicast prefix-based
multicast prefix of FF3x:0030:3FFE:FFFF:0001::/96 (where ‘x’
is any valid scope).
– SSM – All IPv6 SSM multicast addresses will have the format
FF3x::/96.