Configuration Guide Configuring DHCPv6
RFC3633: IPv6 Prefix Options for Dynamic Host Configuration Protocol (DHCP) Version 6
RFC3646: DNS Configuration Options for Dynamic Host Configuration Protocol for IPv6 (DHCPv6)
RFC3736: Stateless DHCP Service for IPv6
RFC5417: Control And Provisioning of Wireless Access Points (CAPWAP) Access Controller DHCP Option
5.2 Applications
Requesting/Allocating
Addresses and Configuration
Parameters
A DHCPv6 client requests addresses from a DHCPv6 server. The DHCPv6 server allocates
addresses and configuration parameters to the DHCPv6 client.
Requesting/Allocating Prefixes
The DHCPv6 client requests a prefix from the DHCPv6 server. The DHCPv6 server
allocates a prefix to the DHCPv6 client and then the DHCPv6 client configures IPv6
addresses by using this prefix.
The DHCPv6 relay is used to enable communication between the DHCPv6 client and
DHCPv6 server on different links.
5.2.1 Requesting/Allocating Addresses and Configuration Parameters
Scenario
In a subnet, a DHCPv6 client requests addresses from a DHCPv6 server. The DHCPv6 server allocates addresses and
configuration parameters to the DHCPv6 client.
As shown in Figure 5-2:
The DHCPv6 server is configured with IPv6 addresses, DNS servers, domain names and other configuration
parameters to be allocated.
A host works as a DHCPv6 client to request an IPv6 address from the DHCPv6 server. After receiving the request, the
DHCPv6 server selects an available address and allocates the address to the host.
The host can also request a DNS server, domain name and other configuration parameters from the DHCPv6 server.
Figure 5-2