Managing Dns; Default Dns Configuration; Setting Up Dns - Cisco C3201FESMIC-TP= - 3201 Fast EN Switch Mobile Interface Card Expansion Module Software Configuration Manual

Managing DNS

To return to the default hostname, use the no hostname global configuration command.
Managing DNS
The DNS protocol controls the Domain Name System (DNS), a distributed database with which you can
map hostnames to IP addresses. When you configure DNS on your WMIC, you can substitute the
hostname for the IP address with all IP commands, such as ping, telnet, connect, and related Telnet
support operations.
IP defines a hierarchical naming scheme that allows a device to be identified by its location or domain.
Domain names are pieced together with periods (.) as the delimiting characters. For example, Cisco
Systems is a commercial organization that is identified by a com domain name; its domain name is
cisco.com.
To keep track of domain names, IP has defined the concept of a domain name server that holds a cache
(or database) of names mapped to IP addresses. To map domain names to IP addresses, identify the
hostnames, specify the name server that is present on your network, and enable the DNS.

Default DNS Configuration

Table 1
Table 1
Feature
DNS enable state
DNS default domain name
DNS servers

Setting Up DNS

To set up your WMIC to use the DNS, follow these steps, beginning in privileged EXEC mode:
Command
Step 1
configure terminal
Step 2 ip domain-name name
Cisco 3200 Series Wireless MIC Software Configuration Guide
2
shows the default DNS configuration.
Default DNS Configuration
Default Setting
Disabled.
None configured.
No name server addresses are configured.
Purpose
Enters global configuration mode.
Defines a default domain name that the software uses to complete unqualified
hostnames (names without a dotted-decimal domain name).
Do not include the initial period that separates an unqualified name from the
domain name.
At boot time, no domain name is configured; however, if the configuration
comes from a BOOTP or Dynamic Host Configuration Protocol (DHCP) server,
then the default domain name might be set by the BOOTP or DHCP server (if
the servers were configured with this information).
Administering the WMIC