BEC 7300N, Руководство пользователя

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5.3.7 Time Schedule
The Time Schedule supports up to 16 time slots which helps you to manage your Internet
connection. In each time profile, you may schedule specific day(s) i.e. Monday through
Sunday to restrict or allowing the usage of the Internet by users or applications.
This Time Schedule correlates closely with router’s time, since router does not have a real
time clock on board; it uses the Simple Network Time Protocol (SNTP) to get the current
time from an SNTP server from the Internet. Refer to Time Zone for details. You router time
should correspond with your local time. If the time is not set correctly, your Time Schedule
will not function properly.
1. If you disable the NAT option in the WAN-ISP section, the Virtual
Server function becomes invalid.
2. If the DHCP server option is enabled, you have to be very careful in
assigning the IP addresses of the virtual servers in order to avoid
conflicts. The easiest way of configuring Virtual Servers is to manually
assign a static IP address to each virtual server PC, with an address
that does not fall into the range of IP addresses that are issued by the
DHCP server. You can configure the virtual server IP address
manually, but it must still be in the same subnet as the router.
Attention
Using port mapping does have security implications, since outside users
are able to connect to PCs on your network. For this reason you are
advised to use specific Virtual Server entries just for the ports your
application requires instead of simply using DMZ or creating a Virtual
Server entry for “All” protocols, as doing so results in all connection
attempts to your public IP address accessing the specified PC.