Enterasys SECURESTACK C3 Configuration Manual page 660

ipv6 nd prefix
Parameters
ipv6‐prefix/prefix‐length The IPv6 network prefix and the prefix length being configured.
valid‐lifetime | infinite (Optional) Specifies the length of time in seconds (relative to the time
preferred‐lifetime |
infinite
no‐autoconfig
off‐link
Defaults
• Valid‐lifetime — 604800
• Preferred‐lifetime — 2592000
• Autoconfig — enabled
• On‐link — enabled
Mode
Router interface configuration:C3(su)‐>router(Config‐if (Vlan 1))#
Usage
Refer to RFC 2461, "Neighbor Discovery for IP Version 6," for more information about router
advertisements.
Router advertisements contain a list of prefixes used for on‐link determination and/or
autonomous address configuration. Flags associated with the prefixes specify the intended uses of
a particular prefix. Hosts use the advertised on‐link prefixes to build and maintain a list that is
used in deciding when a packet's destination is on‐link or beyond a router. Hosts can use the
advertised autoconfiguration prefixes to perform autonomous (stateless) address configuration, if
stateless configuration is allowed (see ipv6 nd other‐config‐flag).
The no form of this command removes the prefix from the list of prefixes advertised in router
advertisements by this interface.
22-20 IPv6 Configuration
The prefix must be in the form documented in RFC 4291, with the
address specified in hexadecimal using 16‐bit values between colons.
The prefix length is a decimal number indicating the number of high‐
order contiguous bits of the address that comprise the network portion
of the address.
the packet is sent) that the prefix is valid for the purpose of on‐link
determination.
The lifetime value can range from 0 to 4,294,967,295.
Specifying infinite means that the prefix is always valid.
(Optional) Specifies the length of time in seconds (relative to the time
the packet is sent) that addresses generated from the prefix by means of
stateless address autoconfiguration remain preferred.
The lifetime value can range from 0 to 4,294,967,295.
Specifying infinite means that the prefix is always preferred.
Unsets the autonomous address‐configuration flag. When not set,
means that this prefix cannot be used for autonomous address
configuration. By default, the autonomous address‐configuration flag is
set/enabled.
Unsets the on‐link flag. When not set, means that this prefix cannot be
used for on‐link determination. By default, the on‐link flag is set/
enabled.