Cisco Cisco SG200-26P 26-port Gigabit PoE Smart Switch Wartungshandbuch

Domain Name System

Cisco Small Business SF200E Series Advanced Smart Switch

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Click Apply and then click Close. Your changes are saved to the Running 
Configuration.

The DNS Dynamic Entries table displays hostnames that have been learned by 
applications that use DNS lookup services. For example, if you ping a hostname, 
the DNS lookup service is invoked and an associated IP address is learned and 
added to the table. 

The DNS Dynamic Entries table displays the following fields:

•

Hostname—Host name assigned to the IP address (or to an official 
hostname).

•

Total—Number of minutes the hostname has been reserved for this 
assignment.

•

Elapsed—Number of minutes that have elapsed since the hostname was 
assigned.

•

Type—Identifies the hostname as one of the following:

-

IP Address—The assigned hostname is associated with an IP address.

-

Canonical—The assigned hostname is an alias or nickname for a 
properly denoted (official) hostname. For example, www.google.com 
might be a hostname alias associated with the official hostname 
www.l.google.com.

•

Addresses—If the Type is IP, this field displays the IPv4 address or the IPv6 
address that is associated with the hostname. If the Type is Canonical, this 
field displays the canonical hostname that the alias is associated with. A 
canonical DNS address might have more than one hostname alias 
associated with it.

To delete a dynamic entry, select it and click Delete. To delete all dynamic entries 
from the table, click Delete All Dynamic Entries.