Reference Guide

Neighbor Discovery Protocol (NDP) | 1071
Syntax
ipv6 nd prefix {ipv6-address prefix-length | default} [no-advertise] | [no-autoconfig |
no-rtr-address | off-link
]
Parameters
Defaults
Not configured
Command Modes
INTERFACE
ipv6 nd ra-lifetime
e
Configure the router lifetime value in the IPv6 router advertisements on an interface.
The description of router lifetime from RFC 2461(http://tools.ietf.org/html/rfc2461)
is:
Router Lifetime: 16-bit unsigned integer. The lifetime associated with the default
router in units of seconds. The maximum value corresponds to 18.2 hours. A Lifetime
of 0 indicates that the router is not a default router and SHOULD NOT appear on the
default router list. The Router Lifetime applies only to the router's usefulness as a
default router; it does not apply to information contained in other message fields or
options. Options that need time limits for their information include their own lifetime
fields.
Syntax
ipv6 nd ra-lifetime seconds
To restore the default values, use the no ipv6 nd ra-lifetime command.
Parameters
Defaults
9000 seconds
Command Modes
INTERFACE
ipv6-address prefix-length
Enter the IPv6 address in the x:x:x:x::x format followed by the
prefix length in the
/x format.
Range: /0 to /128
The
:: notation specifies successive hexadecimal fields of
zeros
default
(OPTIONAL) Enter the keyword default to specify the prefix
default parameters.
no-advertise
(OPTIONAL) Enter the keyword no-advertise to not
advertise prefixes.
no-autoconfig
(OPTIONAL) Enter the keyword no-autoconfig to not use
prefixes for auto-configuration.
no-rtr-address
(OPTIONAL) Enter the keyword no-rtr-address to not send
full router addresses in prefix advertisement.
off-link
(OPTIONAL) Enter the keyword off-link to not use prefixes
for on-link determination.
seconds
Enter the lifetime value in seconds.
Range: 0 to 9000