ZyXEL Communications P-870HN-5xb User Manual page 356

Appendix E IPv6
Link-local Address
A link-local address uniquely identifies a device on the local network (the LAN). It
is similar to a "private IP address" in IPv4. You can have the same link-local
address on multiple interfaces on a device. A link-local unicast address has a
predefined prefix of fe80::/10. The link-local unicast address format is as follows.
Table 119 Link-local Unicast Address Format
1111 1110 10
10 bits
Global Address
A global address uniquely identifies a device on the Internet. It is similar to a
"public IP address" in IPv4. A global unicast address starts with a 2 or 3.
Unspecified Address
An unspecified address (0:0:0:0:0:0:0:0 or ::) is used as the source address
when a device does not have its own address. It is similar to "0.0.0.0" in IPv4.
Loopback Address
A loopback address (0:0:0:0:0:0:0:1 or ::1) allows a host to send packets to
itself. It is similar to "127.0.0.1" in IPv4.
Multicast Address
In IPv6, multicast addresses provide the same functionality as IPv4 broadcast
addresses. Broadcasting is not supported in IPv6. A multicast address allows a
host to send packets to all hosts in a multicast group.
Multicast scope allows you to determine the size of the multicast group. A
multicast address has a predefined prefix of ff00::/8. The following table describes
some of the predefined multicast addresses.
Table 120 Predefined Multicast Address
MULTICAST ADDRESS
FF01:0:0:0:0:0:0:1
FF01:0:0:0:0:0:0:2
FF02:0:0:0:0:0:0:1
FF02:0:0:0:0:0:0:2
FF05:0:0:0:0:0:0:2
FF05:0:0:0:0:0:1:3
356
0 Interface ID
54 bits 64 bits
DESCRIPTION
All hosts on a local node.
All routers on a local node.
All hosts on a local connected link.
All routers on a local connected link.
All routers on a local site.
All DHCP severs on a local site.
P-870HN-5xb User's Guide