D-Link DSR-250N, User Manual

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Unified Services Router
User Manual
16
2.1.1 LAN Configuration in an IPv6 Network
Advanced > IPv6 > IPv6 LAN > IPv6 LAN Config
In IPv6 mode, the LAN DHCP server is enabled by default (similar to IPv4 mode).
The DHCPv6 server will serve IPv6 addresses from configured address pools with
the IPv6 Prefix Length assigned to the LAN.

IPv4 / IPv6 mode must be enabled in the
Advanced > IPv6 > IP mode
to enable
IPv6 configuration options.
LAN Settings
The default IPv6 LAN address for the router is fec0::1 . You can change this 128 bit
IPv6 address based on your network requirements. The other field that defines the
LAN settings for the router is the prefix length. The IPv6 network (subnet) is
identified by the initial bits of the address called the prefix. By default this is
64
bits long. All hosts in the network have common initial bits for their IPv6 address;
the number of common initial bits in the network‘s addresses is set by the prefix
length field.