3com 3031 Instruccion De Instalación

Dynamic resolution: To receive the domain name resolution request lodged by the 
client with special domain name resolution server. The server first performs 
resolution within the local database. If it judges that the domain name does not 
belong to the local domain, it will forward the request to the upper level domain 
name resolution server till the resolution is finished. The resolution results, being 
either IP address or non-existed domain name, will be returned to the client.

Static domain resolution is performed by the static domain name resolution table, 
which is something like the hosts file under Window 95 operation system. The 
router can obtain the IP address of common domain name by inquiring this table. 
Moreover, the user can use host names that are easy to memorize rather than 
abstract IP addresses to access the related devices.

The domain name resolution configuration includes:

■

Add or delete mapping entry in static domain name resolution table

■

Display and debug domain name resolution table

Execute the following commands in system view to add or delete mapping entry in 
static domain name resolution table.

After the above configuration, execute the 

 command in all views to 

display the running of domain name resolution table, and to verify the effect of 
the configuration.

Table 412   adding or deleting mapping entry in static domain name resolution table

Add the mapping between domain 
name and IP address

ip host hostname ip-address

Delete the mapping between domain 
name and IP address

undo ip host hostname [ ip-address ]

Table 413   Displaying and debugging domain name resolution table

Display static domain name resolution table