1 - 2 - 3 - 4 - 6 - 8 - A - B - C - D - E - F - G - H - I - J - L - M - N - O - P - R - S - T - U - V - W
multicast
Click on the red underlined text to get to the source
... routing protocols' measure of distance).
Multicast: An identifier for a set of interfaces (typically
...
... belonging to different nodes). A packet sent to a
multicast address is delivered to all interfaces
identified by that address ...
... addresses in IPv6, their function being
superseded by multicast addresses.
In this document, fields in addresses ...
... (unicast, anycast, and multicast) or scope. Unicast addresses with a
scope greater than link ...
... 2001:DB8:0:0:8:800:200C:417A a unicast address
FF01:0:0:0:0:0:0:101 a multicast address
0:0:0:0:0:0:0:1 the loopback address ...
... 2001:DB8::8:800:200C:417A a unicast address
FF01::101 a multicast address
::1 the loopback address ...
... Multicast Addresses ...
... nodes). An interface may belong to any
number of multicast groups. Multicast addresses have the following
format:
...
... interface may belong to any
number of multicast groups. Multicast addresses have the following
format:
...
...
T = 0 indicates a permanently-assigned ("well-known") multicast
address, assigned by the Internet Assigned Numbers Authority
(IANA ...
...
T = 1 indicates a non-permanently-assigned ("transient" or
"dynamically" assigned) multicast address.
The P flag's definition and usage can be found in [RFC3306 ...
...
scop is a 4-bit multicast scope value used to limit the scope of
the multicast group. The values are as follows:
...
... 4-bit multicast scope value used to limit the scope of
the multicast group. The values are as follows:
0 reserved
...
...
Link-Local multicast scope spans the same topological region as
the corresponding unicast scope.
...
... administratively configured, i.e., not automatically derived
from physical connectivity or other, non-multicast-related
configuration.
...
... scopes labeled "(unassigned)" are available for administrators
to define additional multicast regions.
group ...
...
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].
...
... RFC3306].
The "meaning" of a permanently-assigned multicast address is
independent of the scope value. For example, if the "NTP servers
...
... NTP servers
group" is assigned a permanent multicast address with a group ID of
101 (hex), then
...
... Internet.
Non-permanently-assigned multicast addresses are meaningful only
within a given scope. For example, a group identified by the non-
...
... group identified by the non-
permanent, 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 ...
... ID.
Multicast addresses must not be used as source addresses in IPv6
packets or appear in any Routing header ...
...
Routers must not forward any multicast packets beyond of the scope
indicated by the scop field in the destination multicast address ...
... multicast packets beyond of the scope
indicated by the scop field in the destination multicast address.
Nodes ...
...
Nodes must not originate a packet to a multicast address whose scop
field contains the reserved value 0; if such a packet is received, it
must be silently dropped. Nodes ...
... must be silently dropped. Nodes should not originate a packet to a
multicast address whose scop field contains the reserved value F; if
such a packet is sent or received, it must be treated the same as
packets destined to a global (scop E) multicast address ...
... multicast address whose scop field contains the reserved value F; if
such a packet is sent or received, it must be treated the same as
packets destined to a global (scop E) multicast address.
...
... Pre-Defined Multicast Addresses ...
...
The following well-known multicast addresses are pre-defined. The
group IDs defined in this section are defined for explicit scope
...
... equal to 0, is not allowed.
Reserved Multicast Addresses: FF00:0:0:0:0:0:0:0
FF01:0:0:0:0:0:0:0
FF02:0:0:0:0:0:0:0
...
... FF0F:0:0:0:0:0:0:0
The above multicast addresses are reserved and shall never be
assigned to any multicast group.
...
... The above multicast addresses are reserved and shall never be
assigned to any multicast group.
All Nodes ...
... unicast and anycast addresses. A Solicited-Node multicast
address is formed by taking the low-order 24 bits of an address
...
...
For example, the Solicited-Node multicast address corresponding to
the IPv6 address 4037::01:800:200E:8C6C is FF02::1:FF0E:8C6C. IPv6
addresses ...
... interface)
the associated Solicited-Node multicast addresses for all unicast and
anycast addresses ...
...
o The All-Routers multicast addresses defined in Section 2.7.1.
...
... Haberman, B. and D. Thaler, "Unicast-Prefix-based IPv6 Multicast Addresses", RFC 3306prop, August 2002. ...
... IPv6 transition mechanisms.
o Added the "R" and "P" flags to Section 2.7 on multicast addresses,
and pointers to the documents that define them.
...