Ipv6 Autoconfig - Billion BiPAC 7800NEXL User Manual

IPv6 Autoconfig

The IPv6 address composes of two parts, thus, the prefix and the interface ID.
There are two ways to dynamically configure IPv6 address on hosts. One is statefull configuration,
for example using DHCPv6 (which resembles its counterpart DHCP in IPv4.) In the stateful
autoconfiguration model, hosts obtain interface addresses and/or configuration information and
parameters from a DHCPv6 server. The Server maintains a database that keeps track of which
addresses have been assigned to which hosts.
The second way is stateless configuration. Stateless auto-configuration requires no manual
configuration of hosts, minimal (if any) configuration of routers, and no additional servers. The
stateless mechanism allows a host to generate its own addresses using a combination of locally
available information (MAC address) and information (prefix) advertised by routers. Routers
advertise prefixes that identify the subnet(s) associated with a link, while hosts generate an
"interface identifier" that uniquely identifies an interface on a subnet. An address is formed by
combining the two. When using stateless configuration, you needn't configure anything on the client.
Static LAN IPv6 Address Configuration
Interface Address / Prefix Length: enter the static LAN IPv6 address.
IPv6 LAN application
DHCPv6 Server: check whether to enable DHCPv6 server.
DHCPv6 Server Type: select Stateless or Stateful. When DHCPv6 is enabled, this parameter is
available. Stateless: if selected, the PCs in LAN are configured through RA mode, thus, the PCs in
LAN are configured through RA mode, to obtain the prefix message and generate an address using
a combination of locally available information (MAC address) and information (prefix) advertised by
routers, but they can obtain such information like DNS from DHCPv6 Server. Stateful: if selected,
the PCs in LAN will be configured like in IPv4 mode, thus obtain addresses and DNS information
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