3.2.15. ipv6-autoconf¶

Top level container for IPv6 autoconf configuration.

vsr running config# vrf <vrf> ipv6-autoconf

enabled (pushed)¶

Enable or disable the ipv6 autoconfiguration service.

vsr running config# vrf <vrf> ipv6-autoconf
vsr running ipv6-autoconf# enabled true|false

Default value: false

interface¶

List of interfaces to advertise on.

vsr running config# vrf <vrf> ipv6-autoconf interface <interface>

An interface name.

max-advertisement-interval¶

The maximum time allowed between sending unsolicited multicast router advertisements from the interface. Must be no less than 4 seconds.

vsr running config# vrf <vrf> ipv6-autoconf interface <interface>
vsr running interface <interface># max-advertisement-interval <uint16>

Default value: 600

min-advertisement-interval¶

The minimum time allowed between sending unsolicited multicast router advertisements from the interface.

vsr running config# vrf <vrf> ipv6-autoconf interface <interface>
vsr running interface <interface># min-advertisement-interval <uint16>

Default value: 3

managed¶

Set hosts to use the stateful protocol for address autoconfiguration in addition to any addresses autoconfigured using stateless address autoconfiguration. See RFC 4862.

vsr running config# vrf <vrf> ipv6-autoconf interface <interface>
vsr running interface <interface># managed true|false

Default value: false

other-config¶

Set hosts to use the stateful protocol for autoconfiguration of other (non-address) information. See RFC 4862.

vsr running config# vrf <vrf> ipv6-autoconf interface <interface>
vsr running interface <interface># other-config true|false

Default value: false

link-mtu¶

Use MTU option in router advertisement messages to insure that all nodes on a link use the same MTU value in those cases where the link MTU is not well known. If specified, i.e. not 0, must not be smaller than 1280 and not greater than the maximum MTU allowed for this link (e.g. ethernet has a maximum MTU of 1500. See RFC 4864).

vsr running config# vrf <vrf> ipv6-autoconf interface <interface>
vsr running interface <interface># link-mtu <uint32>

Default value: 0

reachable-time¶

The time, that a node assumes a neighbor is reachable after having received a reachability confirmation. Used by the Neighbor Unreachability Detection algorithm. See Section 7.3 of RFC 4861. Zero value means unspecified.

vsr running config# vrf <vrf> ipv6-autoconf interface <interface>
vsr running interface <interface># reachable-time <uint32>

Default value: 0

retransmit-timer¶

The time between retransmitted Neighbor solicitation messages. Used by address resolution and the Neighbor unreachability Detection algorithm. See Sections 7.2 and 7.3 of RFC 4861. Zero value means unspecified.

vsr running config# vrf <vrf> ipv6-autoconf interface <interface>
vsr running interface <interface># retransmit-timer <uint32>

Default value: 0

default-lifetime¶

The lifetime associated with the default router in seconds.

vsr running config# vrf <vrf> ipv6-autoconf interface <interface>
vsr running interface <interface># default-lifetime <uint16>

Default value: 0

prefix¶

The IPv6 prefix to advertise.

vsr running config# vrf <vrf> ipv6-autoconf interface <interface> prefix <prefix>

An IPv6 prefix: address and CIDR mask.

send-interface-address¶

Send the address of the interface instead of the prefix.This is required by Mobile IPv6. When set, minimum limits specified by Mobile IPv6 are used for min-adv-interval and max-adv-interval.

vsr running config# vrf <vrf> ipv6-autoconf interface <interface> prefix <prefix>
vsr running prefix <prefix># send-interface-address true|false

Default value: false

on-link¶

The prefix can be used for on-link determination. If not set the advertisement makes no statement about on-link or off-link properties of the prefix.

vsr running config# vrf <vrf> ipv6-autoconf interface <interface> prefix <prefix>
vsr running prefix <prefix># on-link true|false

Default value: true

valid-lifetime¶

The length of period that the prefix is valid for the purpose of on- link determination, default is one day.

vsr running config# vrf <vrf> ipv6-autoconf interface <interface> prefix <prefix>
vsr running prefix <prefix># valid-lifetime <uint32>

Default value: 86400

preferred-lifetime¶

The length of period (relative to the time the packet is sent) that addresses generated from the prefix via stateless address autoconfiguration remain preferred, default 4 hours.

vsr running config# vrf <vrf> ipv6-autoconf interface <interface> prefix <prefix>
vsr running prefix <prefix># preferred-lifetime <uint32>

Default value: 14400

autonomous¶

Use the prefix for autonomous address configuration as specified in RFC 4862.

vsr running config# vrf <vrf> ipv6-autoconf interface <interface> prefix <prefix>
vsr running prefix <prefix># autonomous true|false

Default value: true

base6-interface¶

The name of the interface to combine its IPv6 address with the current prefix. The resulting prefix length will be 64.

vsr running config# vrf <vrf> ipv6-autoconf interface <interface> prefix <prefix>
vsr running prefix <prefix># base6-interface BASE6-INTERFACE

BASE6-INTERFACE

An interface name.

base6to4-interface¶

The name of the interface which its IPv4 address will be combined with the prefix to produce a valid 6to4 prefix. The first 16 bits of this prefix will be replaced by 2002 and the next 32 bits of this prefix will be replaced by the IPv4 address assigned to interface name. The remaining 80 bits of the prefix will be advertised. Note the configuration only applied if the interface with the given name does exist otherwise a reapply will be needed.

vsr running config# vrf <vrf> ipv6-autoconf interface <interface> prefix <prefix>
vsr running prefix <prefix># base6to4-interface BASE6TO4-INTERFACE

BASE6TO4-INTERFACE

An interface name.