Reference Guide

System commands 3 Configuration commands
156 NN47928-107
system dns
The Domain Name Service (DNS) client in the unit sends requests to a DNS
server on the WAN. A DNS request is used to get an IP address required by
the BSGX4e, such as the IP address of a server that was specified by a fully-
qualified domain name (FQDN). Two DNS servers can be configured: one as
the primary server; the other as a secondary, backup server.
This command specifies the source of the DNS configuration the client is to
use (auto, dhcp, ppp, or user). The default is auto. If specifying a user-
provided DNS configuration, the configuration can be used only when either
the source parameter value is set to user, or the source parameter value is
auto and a DNS server configuration is not provided by the DHCP or PPP
server. An optional domain name can be specified.
Syntax config system dns [dsn1 <ip address>|dns2 <ip address>] domain
<FQDN> source [auto|dhcp|ppp|user]
Definitions dns1|2 ip address Enter the IP address of the primary and
secondary DNS servers.
domain FQDN Enter the domain name for the BSGX4e. The
DNS client adds the domain to the host before
querying the DNS server. For example, if the
specified name is host and the specified domain
is domain.com, the query is for
host.domain.com
source auto|dhcp|ppp|user
Sets the configuration of the user. Use the
configuration provided by the DHCP or PPP
server or use the latest user-provided
configuration. If the DHCP or PPP server cannot
provide a configuration, the server address is
set to 0.0.0.0. The default is
auto.
Example > config system dns dns1 192.168.1.2
Related
commands
display system dns
show system dns
show relay dns cache