Cisco Cisco SF302-08PP 8-port 10 100 PoE+ Managed Switch Manual De Mantenimiento

Domain Name

Cisco 300 Series Managed Switches Administration Guide

360

 

To view the domain names that have been configured on the device:

Click IP Configuration > Domain Name System > Search List.

The following fields are displayed for each DNS server configured on the device.

•

Domain Name—Name of domain that can be used on the device. 

•

Source—Source of the server’s IP address (static or DHCPv4 or DHCPv6) 
for this domain.

•

Interface—Interface of the server’s IP address for this domain.

•

Preference—This is the order in which the domains are used (from low to 
high). This effectively determines the order in which unqualified names are 
completed during DNS queries.

Host name/IP address mappings are stored in the Host Mapping Table (DNS 
cache). 

This cache can contain the following type of entries:

•

Static Entries—These are mapping pairs that were manually added to the 
cache. There can be up to 64 static entries.

•

Dynamic Entries—These are mapping pairs that were either added by the 
system as a result of being used by the user, or and an entry for each IP 
address configured on the device by DHCP. There can be 256 dynamic 
entries. 

Name resolution always begins by checking static entries, continues by checking 
the dynamic entries, and ends by sending requests to the external DNS server.

Eight IP addresses are supported per DNS server per host name.

To add a host name and its IP address:

Click IP Configuration > Domain Name System> Host Mapping.

If required, select the Clear Table option to clear some or all of the entries in the 
Host Mapping Table. 

•

Static Only—Deletes the static hosts. 

•

Dynamic Only—Deletes the dynamic hosts.