The values listed in Table B-4 have been defined in RFC 4291 for the Multicast Scope field.
Value
Description
0
Reserved
1
Interface-local scope (used to be called Node-local scope in earlier specs)
2
Link-local scope
3
4
Admin-local scope
5
Site-local scope
6, 7
Unassigned
8
Organization-local scope
9, A, B, C, D
E
Global scope
F