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Configuring DNS

Step 6

Step 7

Step 8

Step 9

Configuring Virtualization on a DNS Client

You can configure a DNS client within a VRF. If you do not enter VRF configuration mode, your DNS client

configuration applies to the default VRF.

You can optionally configure a DNS client to use a specified VRF other than the VRF under which you

configured the DNS client as a backup VRF. For example, you can configure a DNS client in the Red VRF

but use the Blue VRF to communicate with the DNS server if the server cannot be reached through the Red

VRF.

Before You Begin

• Ensure that you have a domain name server on your network.

• Ensure that you are in the correct VDC (or use the switchto vdc command).

Procedure

Step 1

Step 2

OL-25777-03

Command or Action

switch(config)# ip

name-server address1

[address2... address6] [ use-vrf

vrf-name]

switch(config)# ip

domain-lookup

switch(config)# show hosts

switch(config)# copy

running-config startup-config

Command or Action

switch# configure terminal

switch(config)# vrf context

vrf-name

Cisco Nexus 7000 Series NX-OS Unicast Routing Configuration Guide, Release 6.x

Configuring Virtualization on a DNS Client

Purpose

continues this process for each entry in the domain list until it

finds a match.

(Optional)

Defines up to six name servers. The address can be either an IPv4

address or an IPv6 address.

You can optionally define a VRF that Cisco NX-OS uses to reach

this name server if it cannot be reached in the VRF that you

configured this name server under.

(Optional)

Enables DNS-based address translation. This feature is enabled

by default.

(Optional)

Displays information about DNS.

(Optional)

Saves the change persistently through reboots and restarts by

copying the running configuration to the startup configuration.

Purpose

Enters global configuration mode.

Creates a VRF and enters VRF configuration mode.