Manual

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each domain to keep track of their own changes, avoiding the need for a central register to be
continually consulted and updated.
In general, the Domain Name System also stores other types of information, such as the list of
mail servers that accept email for a given Internet domain. By providing a world-wide,
distributed keyword-based redirection service, the Domain Name System is an essential
component of the functionality of the Internet.
41.2 DNSv4/v6 Configuration Task List
To enable/disable DNS function
To configure/delete DNS server
To configure/delete domain name suffix
To delete the domain entry of specified address in dynamic cache
To enable DNS dynamic domain name resolution
Enable/disable DNS SERVER function
Configure the max number of client information in the switch queue
Configure the timeout value of caching the client information on the switch
Monitor and diagnosis of DNS function
1. To enable/disable DNS function
Command
Explanation
Global Mode
ip domain-lookup
no ip domain-lookup
To enable/disable DNS dynamic lookup
function.
2. To configure/delete DNS server
Command
Explanation
Global Mode
dns-server {<ip-address> | <ipv6-
address>} [priority <value>]
no dns-server {<ip-address> | <ipv6-
address>}
To configure DNS server, the no form of this
command deletes DNS server.
3. To configure/delete domain name suffix
Command
Explanation
Global Mode
ip domain-list <WORD>
no ip domain-list <WORD>
To configure/delete domain name suffix.