Information Technology Reference
In-Depth Information
Ta b l e 9 - 4
Multicast Scope Assignments
SCOP (Binary)
SCOP (Hexadecimal)
Assignment
0011
3
Unassigned
0100
4
Admin-local scope
0101
5
Site-local scope
0110
6
Unassigned
0111
7
Unassigned
1000
8
Organization-local scope
1001
9
Unassigned
1010
A
Unassigned
1011
B
Unassigned
1100
C
Unassigned
1101
D
Unassigned
1110
E
Global scope
1111
F
Reserved
The group ID identifies the multicast group within the given scope. The group ID is inde-
pendent of the scope. A group ID of 0:0:0:0:0:0:1 identifies nodes, whereas a group ID of
0:0:0:0:0:0:2 identifies routers. Some well-known multicast addresses appear in Table 9-5
associated with a variety of scope values.
Ta b l e 9 - 5
We l l - K n o w n I P v 6 M u l t i c a s t A d d r e s s e s
Multicast Address
Multicast Group
FF01::1
All nodes (node-local)
FF02::1
All nodes (link-local)
FF01::2
All routers (node-local)
FF02::2
All routers (link-local)
FF02::5
Open Shortest Path First Version 3 (OSPFv3)
FF02::6
OSPFv3 designated routers
FF02::9
Routing Information Protocol (RIPng)
FF02::A
EIGRP routers
FF02::B
Mobile agents
FF02::C
DHCP servers/relay agents
