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Configuring DNS

Virtualization Support for DNS Clients

Cisco NX-OS supports multiple instances of the DNS clients that run on the same system. You can configure

a DNS client in each virtual device connect (VDC).You can optionally have a different DNS client configuration

in each virtual routing and forwarding (VRF) instance within a VDC. By default, Cisco NX-OS places you

in the default VDC and default VRF unless you specifically configure another VDC and VRF. See the Cisco

NX-OS Virtual Device Context Configuration Guide .

Licensing Requirements for DNS Clients

This feature does not require a license. Any feature not included in a license package is bundled with the Cisco

NX-OS system images and is provided at no extra charge to you. For a complete explanation of the Cisco

NX-OS licensing scheme, see the Cisco NX-OS Licensing Guide.

• You must have a DNS name server on your network.

• If you configure VDCs, install the Advanced Services license and enter the desired VDC (see the Cisco

• You configure the DNS client in a specific VRF. If you do not specify a VRF, Cisco NX-OS uses the

• If you are familiar with the Cisco IOS CLI, be aware that the Cisco NX-OS commands for this feature

The table below lists the default settings for DNS client parameters.

Table 1: Default DNS Client Parameters

Parameters

DNS client

OL-25777-03

NX-OS Virtual Device Context Configuration Guide).

default VRF.

might differ from the Cisco IOS commands that you would use.

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

Virtualization Support for DNS Clients

Default

Enabled