
BLADE OS 6.1 Command Reference
BMD00133, November 2009 Chapter 4: Configuration Commands
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Domain Name System Configuration
The Domain Name System (DNS) commands are used for defining the primary and secondary DNS
servers on your local network, and for setting the default domain name served by the switch
services. DNS parameters must be configured prior to using hostname parameters with the ping,
traceroute, and tftp commands.
Table 215 Domain Name Service Commands
Command Syntax and Usage
[no] ip dns primary-server <IP address>
You are prompted to set the IPv4 address for your primary DNS server, using dotted decimal
notation.
Command mode: Global configuration
[no] ip dns secondary-server <IP address>
You are prompted to set the IPv4 address for your secondary DNS server, using dotted
decimal notation. If the primary DNS server fails, the configured secondary will be used
instead.
Command mode: Global configuration
[no] ip dns ipv6 primary-server <IP address>
You are prompted to set the IPv6 address for your primary DNS server, using hexadecimal
format with colons.
Command mode: Global configuration
[no] ip dns ipv6 secondary-server <IP address>
You are prompted to set the IPv6 address for your secondary DNS server, using hexadecimal
format with colons. If the primary DNS server fails, the configured secondary will be used
instead.
Command mode: Global configuration
ip dns ipv6 request-version {ipv4|ipv6}
Sets the protocol used for the first request to the DNS server, as follows:
IPv4
IPv6
Command mode: Global configuration
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