IPv6 address classification

IPv6 addresses include the following types: (here the emphasis is on unicast and Multicast)

1. unicast

2. Multicast

3. anycast

1. unicast addresses, which are divided into 6 Types
1. aggregatebal global unicast addresses (global unicast addresses can be aggregated)
2. Link-local address (local link address, equivalent to automatically obtained IP addresses such as 169.254)
3. Site-local address (local site address, equivalent to 10.0.0.0)
4. Special address
5. Compatibility address
6. NSAP address

The link-local address is similar to the automatic private IP address, which is equivalent to the 169.254.0.0/16 address automatically obtained in windows. This type of address is prefixed with fe80 in IPv6.

Site-local address is similar to 10.0.0.0/8, 172.16.0.0/24/24/16. In IPv6, this type of address is prefixed with fec0:

Ii. multicast address
Ff01: 1 node local scope all-node multicast address
Ff01: 2 node local scope all-routers multicast address
Ff02: 1 link local scope all-node multicast address
Ff02: 2 link local scope all routers multicast address
Ff05: 1 site local scope all node multicast address
Ffp5: 2 site local scope all routers multicast address

Ff02: a valid address within the range of a local link. The Router does not forward the address.

Ff05: a valid address within the scope of the local site. The router will forward the address within the enterprise, which is equivalent to a private website.