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group
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... bits easier, a special syntax is available to compress the zeros.
The use of "::" indicates one or more groups of 16 bits of zeros.
The "::" can only appear once in an address ...
... bit-order, where "u" is the
universal/local bit, "g" is the individual/group bit, and "c" is the
bits ...
... IPv6 multicast address is an identifier for a group of interfaces
(typically on different nodes ...
... nodes). An interface may belong to any
number of multicast groups. Multicast addresses have the following
format:
...
... bits |
+------ -+----+----+---------------------------------------------+
|11111111|flgs|scop| group ID |
+--------+----+----+---------------------------------------------+
...
... 4-bit multicast scope value used to limit the scope of
the multicast group. The values are as follows:
0 reserved
...
... multicast regions.
group ID identifies the multicast group, either permanent or
transient, within the given scope. Additional definitions of the
...
...
group ID identifies the multicast group, either permanent or
transient, within the given scope. Additional definitions of the
multicast group ...
... multicast group, either permanent or
transient, within the given scope. Additional definitions of the
multicast group ID field structure are provided in [RFC3306].
...
... independent of the scope value. For example, if the "NTP servers
group" is assigned a permanent multicast address with a group ID of
...
... Non-permanently-assigned multicast addresses are meaningful only
within a given scope. For example, a group identified by the non-
permanent, site-local multicast address ...
... site-local multicast address FF15:0:0:0:0:0:0:101 at one
site bears no relationship to a group using the same address at a
different site, nor to a non-permanent group ...
... group using the same address at a
different site, nor to a non-permanent group using the same group ID
with a different scope, nor to a permanent group ...
... address at a
different site, nor to a non-permanent group using the same group ID
with a different scope, nor to a permanent group with the same group ...
... group using the same group ID
with a different scope, nor to a permanent group with the same group
ID.
...
... well-known multicast addresses are pre-defined. The
group IDs defined in this section are defined for explicit scope
values.
...
... values.
Use of these group IDs for any other scope values, with the T flag
equal to 0, is not allowed.
...
... The above multicast addresses are reserved and shall never be
assigned to any multicast group.
All Nodes ...
...
The above multicast addresses identify the group of all IPv6 nodes,
within scope 1 (interface-local ...
...
The above multicast addresses identify the group of all IPv6 routers,
within scope 1 (interface-local ...
... the universal/local bit to indicate universal scope, "g" is
individual/group bit, and "m" is the bits of the manufacturer-
...
... the universal/local bit to indicate Global scope, "g" is
individual/group bit, and "m" is the bits of the manufacturer-
...
... IPv6, and the GROW
working group is working in this area.
o Deprecated the Site-Local unicast prefix ...