QNO Security QoS Firewall Router, Руководство пользователя

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3.2 Security QoS Router Network Connection
WAN connection
：
A WAN port can be connected with xDSL Modem, Fiber Modem, Switching Hub, or
through an external router to connect to the Internet.
LAN Connection: The LAN port can be connected to a Switching Hub or directly to a PC.
DMZ : The DMZ port can be connected to servers that have legal IP addresses, such as Web servers,
mail servers, etc.