Administrator Guide

Commands to Configure DNS
To configure the Domain Names Systems (DNS) on the system, use the following commands:
ip name-server
Configures one or more name server (DNS) IP addresses. You can configure up to six IP addresses.
Syntax
ip name-server [vrf vrf-name] ip-address [ip-address2] [ip-address3] [ip-
address4] [ip-address5] [ip-address6]
To undo the name server ip address configuration for VRF, use the no ip name-server [vrf vrf-name]
ip-address command.
Parameters
vrf vrf-name (Optional) Enter the key word vrf and then the name of the VRF to configure the name
server IP addresses for that VRF.
ip-address [ ip-
address2 ] [ ip-
address3 ] [ ip-
address4 ] [ ip-
address5 ] [ ip-
address6 ]
Enter the IP address of the name server in dotted decimal format.
NOTE: Use the additional ip-address parameters (ip-address2 to ip-
address6) in a sequential order to specify up to a maximum of six IP
addresses per VRF.
Defaults None
Command Modes CONFIGURATION
Command History
This guide is platform-specific. For command information about other platforms, refer to the relevant Dell EMC
Networking OS Command Line Reference Guide.
The following is a list of the Dell EMC Networking OS version history for this command.
Version Description
9.10(0.0) Introduced on the S3148.
9.8(2.0) Introduced on the S3100 series.
9.8(1.0) Introduced on the Z9100–ON.
9.8(0.0P5) Introduced on the S4048-ON.
9.8(0.0P2) Introduced on the S3048-ON.
9.7(0.0) Introduced on the S6000-ON.
9.4.(0.0) Introduced on the S-Series and Z-Series.
Usage Information
Use this command to associate the system with one or more DNS servers.
In a dual stack setup, the system sends both A (request for IPv4 — RFC 1035) and AAAA (request for IPv6 —
RFC 3596) record requests to a DNS server even if only the ip name-server command is configured.
Example
• DellEMC(conf)#ip name-server vrf jay 2.2.2.2
• DellEMC(conf)#ip name-server vrf jay 2.2.2.2 3.3.3.3 4.4.4.4 5.5.5.5
6.6.6.6 7.7.7.7
ip domain-name
Configures the default domain corresponding to a specific VRF. This domain is appended to the in complete DNS requests corresponding
to the specified VRF.
Syntax
ip domain-name [vrf vrf-name] name
Dynamic Host Configuration Protocol (DHCP) 523