Alcatel-Lucent ls 6248 User Guide

Configuring Domain Name Service

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CLI – The following is an example of the ARP CLI commands:

Domain Name System (DNS) converts user-defined domain names into IP 
addresses. Each time a domain name is assigned, the DNS service translates the 
name into a numeric IP address. For example, www.ipexample.com is translated 
into 192.87.56.2. DNS servers maintain databases of domain names and their 
corresponding IP addresses. 
When a client device designates this switch as a DNS server, the client will attempt 
to resolve host names into IP addresses by forwarding DNS queries to the switch, 
and waiting for a response. 
You can manually configure entries in the DNS table used for mapping domain 
names to IP addresses, configure default domain names, or specify one or more 
name servers to use for domain name to address translation. 
When configuring the DNS parameters: 
• Enable DNS service on this switch, first configure one or more name servers, and 

then enable domain lookup status.

• To append domain names to incomplete host names received from a DNS client 

(i.e., not formatted with dotted notation), you can specify a default domain name or 
a list of domain names to be tried in sequential order.

• If there is no domain list, the default domain name is used. If there is a domain list, 

the default domain name is not used.

• When an incomplete host name is received by the DNS server on this switch and 

a domain name list has been specified, the switch works through the domain list, 
appending each domain name in the list to the host name, and checking with the 
specified name servers for a match.

• When more than one name server is specified, the servers are queried in the 

specified sequence until a response is received, or the end of the list is reached 
with no response. 

• Note that if all name servers are deleted, DNS will automatically be disabled.

Console(config)# 

198.133.219.232 00:00:0c:40:0f:bc

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