Administrator Guide

ipv6 name-server
Enter up to six IPv6 addresses of name servers. The order you enter the addresses determines the order of their use.
C9000 Series
Syntax
ipv6 name-server ipv6-address [ipv6-address2... ipv6-address6]
To remove a name server, use the no ipv6 name—server ipv6–address command.
Parameters
ipv6-address Enter the IPv6 address (X:X:X:X::X) of the name server to be used.
Note: The :: notation specifics successive hexadecimal fields of zeros.
ipv6-address2...
ipv6-address6
(OPTIONAL) Enter up to five more IPv6 addresses, in the x:x:x:x::x format, of name
servers to be used. Separate the IPv6 addresses with a space.
Defaults none
Command Modes CONFIGURATION
Command
History
This guide is platform-specific. For command information about other platforms, refer to the relevant Dell
Networking OS Command Line Reference Guide.
The following is a list of the Dell Networking OS version history for this command.
Version Description
9.9(0.0) Introduced on the C9010.
9.2(1.0) Introduced on the Z9500.
9.0.0.0 Introduced on the Z9000.
8.3.19.0 Introduced on the S4820T.
8.3.7.0 Introduced on the S4810.
8.4.2.1 Introduced on the C-Series and S-Series.
8.4.1.0 Introduced on the E-Series TeraScale.
Usage
Information
You can separately configure both IPv4 and IPv6 domain name servers.
ipv6 nd dad attempts
Configure the number of neighbor solicitation messages that are sent to perform duplicate address detection (DAD) on the
interface.
C9000 Series
Syntax
ipv6 nd dad attempts {number of attempts}
To restore the default value, use the no ipv6 nd dad attempts command.
Parameters
number of
attempts
Enter the number of attempts to be made to detect a duplicate address. The range
is from 0 to 15. Setting the value to 0 disables DAD on the interface.
Default 3 attempts
Command Modes
INTERFACE
982 IPv6 Basics