IPv6 Multicast range

[gxt]

Shouldn't the multicast range in IPv6 be FF00::/16??
In pg 745 it is shown as FF00::/8

G.

[aguilera]

FF00::/8 is the wellknown IPv6 addressing scheme.

The first 8 bits must be turned on.

Hex Weight = 8 4 2 1 8 4 2 1 8 4 2 1 8 4 2 1
Bits enabled = 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0
Hex Characters = F F 0 0

[farmerdave]

Hey, Todd:

Actually, I think that your book is correct on page 745 concerning the /8 with the FF00:: for the multicast range. Please check out RFC-4291. One url for this RFC is: http://tools.ietf.org/html/rfc4291.

Scroll down to paragraph 2.4 on page 5 of this document, and you will see that your book is in complete agreement with RFC-4291!

Now, does that mean I get a free promotion from "Junior Member"? :cool:

Dave

[pconlan]

The book is correct!
I think there may have been some confusion. The Multicast range for IPv6 starts with the first 8 bits turned on and ends with the first 16 bits turned on. So the full range is FF00:: to FFFF::

I hope this helps.