Ruijie RG-S2900G-E Series, Configuration Manual

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Configuration Guide IPv6 Configuration

Unicast: Identifier of a single interface. The packet to be sent to a unicast address
will be transmitted to the interface identified by this address.

Anycast: Identifiers of a set of interfaces. The packet to be sent to an anycast
address will be transmitted to one of the interfaces identified by this address
(select the nearest one according to the routing protocol).

Multicast: Identifiers of a set of interfaces (In general, they are of different nodes).
The packet to be sent to a Multicast address will be transmitted to all the
interfaces which are added to this multicast address.
Caution
The broadcast address is not defined in the IPv6.
The following will introduce these types of addresses one-by-one:
Unicast Addresses
IPv6 unicast addresses include the following types:

Aggregateable Global Addresses

Link-level Local Addresses

Site-level Local Addresses

IPv6 of IPv4 Addresses
1. Aggregateable Global Addresses
The format of the aggregateable global unicast addresses is shown as follows:
| 3 | 13 | 8 | 24 | 16 | 64 bits |
+--+-----+---+--------+--------+--------------------------------+
|FP| TLA |RES| NLA | SLA | Interface ID |
| | ID | | ID | ID | |
+--+-----+-----+------------+-------------+-------------------------------------------- +
Above figure contains the following fields:

FP field (Format Prefix):
The format prefix in an IPv6 address, 3 bits long, is used to indicate the type of the
address in the IPv6 address space. 0 0 1 indicates an aggregateable global unicast
address.

TLA ID field (Top-Level Aggregation Identifier):
Top-Level Aggregation Identifier, containing toppest address routing information. It
refers to the maximum route information in networking. It is 13 bits long and can
provide up to 8192 different top level routes.