Multicast/Group/Class-D Address Types

Group Address Types

Address Range

Description

Local Scope Addresses

224.0.0.X

11100000.0.0.X

  • addresses are used on a local link
  • Time-To-Live (TTL) of 1
  • 224.0.0.1 - all hosts
  • 224.0.0.2 - all multicast routers
  • 224.0.0.5 - all OSPF
  • 224.0.0.6 - all OSPF DR (Designated Router)

GLOP

233.X.X.0 - 233.X.X.255

11101001.X.X.0 - 11101001.X.X.255

Transient Addresses - Global Range

224.0.1.0 - 238.255.255.255

  • 224.2.X.X in the multicast backbone (Mbone)

Transient Addresses - Site-Local Scope

239.253.0.0/16

Transient Addresses - Organization Local Scope

239.192.0.0/14