CLI Reference Guide

Chapter 28 | IP Interface Commands
IPv6 Interface
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autoconfiguration to get other non-address parameters from DHCPv6 servers.
In this case, the absence of both the “managed address configuration” flag and
the “other stateful configuration” flag is interpreted to mean that they should
use only stateless autoconfiguration to obtain addresses.
Example
The following tells hosts to use stateful autoconfiguration to obtain other non-
address information from a DHCPv6 server:
Console(config)#interface vlan 1
Console(config)#ipv6 nd other-config-flag
Console(config)#
ipv6 nd ns-interval This command configures the interval between transmitting IPv6 neighbor
solicitation messages on an interface. Use the no form to restore the default value.
Syntax
ipv6 nd ns-interval milliseconds
no ipv6 nd ns-interval
milliseconds - The interval between transmitting IPv6 neighbor solicitation
messages. (Range: 1000-3600000)
Default Setting
1000 milliseconds is used for neighbor discovery operations
0 milliseconds is advertised in router advertisements
Command Mode
Interface Configuration (VLAN)
Command Usage
◆ When a non-default value is configured, the specified interval is used both for
router advertisements and by the router itself.
◆ This command specifies the interval between transmitting neighbor
solicitation messages when resolving an address, or when probing the
reachability of a neighbor. Therefore, avoid using very short intervals for normal
IPv6 operations.
◆ Setting the neighbor solicitation interval to 0 means that the configured time is
unspecified by this router.Setting the neighbor solicitation interval to 0 means
that the configured time is unspecified by this router.