Netgear FVS336G 参照ガイド

8-4

Router and Network Management

You can apply these rules selectively to groups of PCs to reduce the outbound or inbound traffic. 
The LAN Groups Database is an automatically-maintained list of all known PCs and network 
devices. PCs and devices become known by the following methods: 

•

DHCP Client Request. By default, the DHCP server in this VPN firewall is enabled, and will 
accept and respond to DHCP client requests from PCs and other network devices. These 
requests also generate an entry in the LAN Groups Database. Because of this, leaving the 
DHCP server feature (on the LAN screen) enabled is strongly recommended. 

•

Scanning the Network. The local network is scanned using ARP. requests. The ARP scan will 
detect active devices that are not DHCP clients. However, sometimes the name of the PC or 
device cannot be accurately determined, and will appear in the database as Unknown. 

•

Manual Entry. You can manually enter information about a device.

See 

 for the procedure on how to use 

this feature.

If you have set firewall rules on the Rules screen, you can configure three different schedules (for 
example, schedule 1, schedule 2, and schedule 3) for when a rule is to be applied. Once a schedule 
is configured, it affects all Rules that use this schedule. You specify the days of the week and time 
of day for each schedule.

See 

 for the procedure on 

how to use this feature.

If you want to reduce traffic by preventing access to certain sites on the Internet, you can use the 
VPN firewall’s filtering feature. By default, this feature is disabled; all requested traffic from any 
Web site is allowed. 

•

Keyword (and Domain Name) Blocking. You can specify up to 32 words that, should they 
appear in the Web site name (i.e., URL) or in a newsgroup name, will cause that site or 
newsgroup to be blocked by the VPN firewall.

You can apply the keywords to one or more groups. Requests from the PCs in the groups for 
which keyword blocking has been enabled will be blocked. Blocking does not occur for the 
PCs that are in the groups for which keyword blocking has not been enabled.