Introduction to IPv6 host and route address

In the new IPv6 network protocol version, the network address has been greatly changed. Now we will perform a specific analysis on IPv6 addresses. At present, we mainly use the routing address and host address to explain the IPv6 address.

IPv6 address 1: IPv6 host address

In IPv4, if a host installs a nic, a typical situation is that the host has an IPv4 address allocated to the NIC. But IPv6 is different. Generally, an IPv6 host has multiple IPv6 addresses, even if the host has only one single interface. An IPv6 host can have the following spof addresses at the same time:

◆ Local link address of each interface

◆ The single point transfer address interface of each interface can be a local site address and one or more global addresses that can be aggregated)

◆ Loop loopback) the loop address of the interface: 1)

A typical IPv6 host has at least two addresses:

1. Local link address for receiving local link information

2. The local address or global address of the site that can be routed.

In addition, each host must always listen to the information flow on the following multi-point transfer address:

◆ All node multicast addresses in the local range of the node FF01: 1)

◆ All node multicast addresses within the local range of The Link FF02: 1)

◆ Request node solicited-node) multicast address if an interface of the host is added to the request node group)

◆ Multicast address if an interface of the host is added to any multicast group)

IPv6 address 2: IPv6 router address

An IPv6 router can be assigned the following unicast addresses:

◆ Local link address of each interface

◆ The single point transfer address interface of each interface can be a local site address and one or more global addresses that can be aggregated)

◆ Subnet-any router point transfer address

◆ Other transfer addresses of any point are optional)

◆ Loop address of the loop interface: 1)

In addition, the router must always listen to the information flow on the following multicast addresses:

◆ All node multicast addresses within the local range of the node FF01: 1)

◆ All vro multicast addresses within the local range of the node FF01: 2)

◆ All node multicast addresses within the local range of The Link FF02: 1)

◆ All vro multicast addresses within the local range of The Link FF02: 2)

◆ All vro multicast addresses in the local area of the site FF05: 2)

◆ Request node solicited-node) multicast address if an interface of the router is added to the request node group)

◆ Multicast IPv6 address if an interface of the router is added to any multicast group)