17-1
C
HAPTER
17D

OMAIN

N

AME

S
ERVICE
The Domain Naming System (DNS) service on this switch allows host
names to be mapped to IP addresses using static table entries or by
redirection to other name servers on the network. When a client de vice
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.

Configuring General DNS Service Parameters

Command Usage
To enable DNS service on this switch, configure one or more name
servers, and 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 system will search it for a corresponding entry. If none
is found, it will use the default domain name.
When an incomplete host name is received by the DNS service on this
switch and a domain name list has been specified, the switch will work
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.