DELL PC7024 User Manual

IPv6 Routing Commands

604800 seconds is the default value for valid-lifetime, 2592000 seconds for 

preferred lifetime.

Interface Configuration (VLAN, Tunnel, Loopback) mode

The router advertises its global IPv6 prefixes in its router advertisements 

(RAs). An RA only includes the prefixes of the IPv6 addresses configured on 

the interface where the RA is transmitted. Addresses are configured using the 

ipv6 address interface configuration command. Each prefix advertisement 

includes information about the prefix, such as its lifetime values and whether 

hosts should use the prefix for on-link determination or address auto-

configuration. Use the ipv6 nd prefix command to configure these values.
The ipv6 nd prefix command will allow you to preconfigure RA prefix values 

before you configure the associated interface address. In order for the prefix 

to be included in RAs, you must configure an address that matches the prefix 

using the ipv6 address command. Prefixes specified using ipv6 nd prefix 

without an associated interface address will not be included in RAs and will 

not be committed to the device configuration.

ipv6-prefix

IPv6 prefix.

prefix-length

IPv6 prefix length.

valid-lifetime

Valid lifetime of the router in seconds. (Range: 0–4294967295 

seconds.)

infinite

Indicates lifetime value is infinite.

preferred-lifetime

Preferred-lifetime of the router in seconds. (Range: 

0–4294967295 seconds.)

no-autoconfig

Do not use Prefix for autoconfiguration.

off-link

Do not use Prefix for onlink determination.

2CSPC4.XCT-SWUM2XX1.book  Page 1026  Monday, October 3, 2011  11:05 AM