Draytek Vigor 2925 Series User Manual page 259

Cache
Eight profiles are provided here as Web content filters. Simply click the index number under
Profile to open the following web page. The items listed in Categories will be changed
according to the different service providers. If you have and activate another web content filter
license, the items will be changed simultaneously. All of the configuration made for web
content filter will be deleted automatically. Therefore, please backup your data before you
change the web content filter license.
None – the router will check the URL that the user wants to
access via WCF precisely, however, the processing rate is
normal. Such item can provide the most accurate URL
matching.
L1 – the router will check the URL that the user wants to
access via WCF. If the URL has been accessed previously,
it will be stored for a short time (about 1 second) in the
router to be accessed quickly if required. Such item can
provide accurate URL matching with faster rate.
L2 – the router will check the URL that the user wants to
access via WCF. If the data has been accessed previously,
the IP addresses of source and destination IDs will be
memorized for a short time (about 1 second) in the router.
When the user tries to access the same destination ID, the
router will check it by comparing the record stored. If it
matches, the page will be retrieved quickly. Such item can
provide URL matching with the fastest rate.
L1+L2 Cache – the router will check the URL with fast
processing rate combining the feature of L1 and L2.
247 Vigor2925 Series User's Guide