Days: Select the day(s) to run the access policy.
 Save: Select Save to enable the settings.
For example:
If   you   want   the   computer   at   the   IP   address   of 
192.168.0.123 to access the Internet from 9 : 00 to 
18:00 everyday and only can search the WEB pages 
contain the strings such as sina, sohu, and yahoo, you 
need   to   set   the   packet   filtering   list   as   the   above 
diagram. (Notice: different strings need to be aparted 
by a comma.)  
13.3 MAC Address Filter
In order to manage the computers in LAN better, you 
could   control   the   computer’s   access   to   Internet   by 
MAC Address Filter.