Specifications

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Cisco IOS Software Configuration Guide for Cisco Aironet Access Points
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Chapter 5 Administering the Access Point
Configuring a System Name and Prompt
When you set the system name, it is also used as the system prompt.
To return to the default host name, use the no hostname global configuration command.
Understanding DNS
The DNS protocol controls the Domain Name System (DNS), a distributed database with which you can
map host names to IP addresses. When you configure DNS on your access point, you can substitute the
host name 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 IP identifies by a com domain name, so its domain name is
cisco.com. A specific device in this domain, such as the File Transfer Protocol (FTP) system, is
identified as ftp.cisco.com.
To keep track of domain names, IP has defined the concept of a domain name server, which holds a cache
(or database) of names mapped to IP addresses. To map domain names to IP addresses, you must first
identify the host names, specify the name server that is present on your network, and enable the DNS.
This section contains this configuration information:
• Default DNS Configuration, page 5-38
• Setting Up DNS, page 5-39
• Displaying the DNS Configuration, page 5-40
Default DNS Configuration
Table 5-5 shows the default DNS configuration.
Table 5-5 Default DNS Configuration
Feature Default Setting
DNS enable state Disabled.
DNS default domain name None configured.
DNS servers No name server addresses are configured.