These are extra tasks for the CCIE Routing & Switching class, the documents require a password:

Tasks

Answers
Password requiredExtra tasks for the IPv6 section Password requiredAnswers for Extra tasks for the IPv6 section
Password requiredPractice Lab#1 (version 1.7..updated 4/21/06) Password requiredPractice Lab#1 Answers (version 1.7..updated 4/21/06)
Password requiredDiagram for Practice Lab#1 (version 1.3, updated 4/21/06)  
Password requiredDiagram for Practice Lab#2 (version 1.0, updated 4/27/06)  

Multicast extra information:

Reserved link local address
224.0.0.0 to 224.0.0.255

Globally scoped addresses
224.0.1.0 to 238.255.255.255

Source specific multicast

232.0.0.0 to 232.255.255.255

GLOP addresses
233.0.0.0 to 233.255.255.255

Limited scope addresses
239.0.0.0 to 239.255.255.255

Additional QoS Slides