Wendell Odom 100-105 Official Cert Guide pg 734 IPv6 Solicited Node Multicast Address

[lendawg137]

On page 721, the Solicited-Note Multicast address is defined as FF02:0000:0000:0000:0000:0001:FF__:____, 

with the last six digits being the "Last 6 Hex Digits of Unicast Address". 

So why does Fig. 31-4 show PC2 with IPv6 Address of 2001:DB8:1111:1::22/64, with MAC Address 0200:2222:2222 having a Solicited-Note Multicast address of FF02::1:FF00:22? 

Shouldn't the Solicited-Node Multicast address be FF02::1:FF22:2222? 

This information is difficult enough to understand without inconsistencies. :(

Leonard Boone

[Seb Rupik · Accepted solution]

Hi there,

You observation is correct, FF02::1:FF22:2222/104 is the correct address.

https://tools.ietf.org/html/rfc4291#section-2.7.1

The error does not appear in the currentl published errata:

http://www.ciscopress.com/content/images/9781587205804/Errata/9781587205804Errata04162018.doc

...you should make a submission, clearly everyone else who has read this chapter was suffering IPv6 fatigue and didn't notice it!

http://www.ciscopress.com/about/contact_us/index.asp?ContactUs_Topics_Partners_id=15b0f15d-2011-4af8-ba30-e6149bee89df

cheers,

Seb.

[lendawg137]

Sorry I'm a year late. Thanks for the response. :)