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There is no broadcast address in IPv6, and the function of broadcast address is realized by

multicast address。

The IPv6 address type is specified by several preceding addresses (called the format prefix),

and the corresponding relationship between the main address type and the format prefix is shown

in Table 1-1。

number of global routing tables。

source or destination address are not forwarded to other links。

use the local address of the site as the source or destination address are not forwarded to other sites

outside the site (equivalent to a private network)。

address, and cannot be assigned to any physical interface. Its function is the same as the loopback

address in IPv4, that is, nodes send IPv6 messages to themselves。

Table 1-2 list of reserved IPv6 multicast addresses

This address is mainly used to obtain link layer address of neighbor nodes on the same chain and

realize duplicate address detection. Each unicast or anycast IPv6 address has a corresponding

address of the requested node. Its format is：

FF02:0:0:0:0:1:FFXX:XXXX

unicast or anycast IPv6 address。

5 The interface identifier of IEEE EUI-64 format

bit after the high position). To ensure that the interface identifier obtained from the MAC address

is unique, the Universal/Local (U/L) bit (starting from the high bit) is set to 1 seventh". Finally, the

number of groups is used as the interface identifier of the EUI-64 format。