Draytek Vigor3300 Series, Руководство пользователя, Страница: 52 / 213

Vigor3300 Series User’s Guide
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Detect Interval Assign an interval time for detecting if the WAN connection is
on or off.
No-Reply Count Assign detecting times to ensure the connection of the WAN.
After passing the times you set in this field and no reply
received by the router, the connection of WAN interface will be
regarded as breaking down.
Apply Click Apply to go back to the WAN Interface Configuration
page. To apply all settings, click Apply on the WAN Interface
Configuration page and reboot your router.
Reset Click this button to clear all the configurations for this page.
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In computer networks, a DMZ (De-Militarized Zone) is a computer host or small network
inserted as a neutral zone between a company’s private network and the outside public
network. It prevents outside users from getting direct access to company network. A DMZ is
an optional and more secure approach to a firewall and effectively acts as a proxy server as
well. In a typical DMZ configuration for a small company, a separate computer (or host in
network terms) receives requests from users within the private network for access to Web sites
or other companies accessible on the public network. The DMZ host then initializes sessions
for these requests on the public networks. However, the DMZ host is not able to initiate a
session back into the private network. It can only forward packets that have already been
requested. Users of the public network outside the company can access only the DMZ host.
The DMZ may typically also have the company’s Web pages so these could be served to
the outside world. If an outside user penetrated the DMZ host’s security, only the Web pages
will be corrupted but other company information would not be exposed.
The service provider must provide the exact settings for this mode.
IP Address Set the private IP address of WAN interface.
Subnet Mask Set the subnet mask value of WAN interface.