WatchGuard Technologies WatchGuard SOHO and SOHO | tc 用户手册

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How does information travel on the internet?
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address of the WatchGuard site is 209.191.160.60 while the domain 
name is www.watchguard.com.
Protocol
A protocol defines how a packet is bundled up and packaged for 
shipment across a network. The most commonly used protocols 
are Transmission Control Protocol (TCP) and User Datagram 
Protocol (UDP). In addition, there are special protocols, such as IP, 
which are used less frequently. 
Port number
The port number alerts the computers at both the sending and 
receiving end how to handle the packet. 
Services
A service is the combination of protocol(s) and port numbers 
associated with a specific application or communication type. To 
facilitate configuration of your SOHO, WatchGuard lets you select 
pre-configured versions of several commonly used services. 
WatchGuard SOHO services
The WatchGuard SOHO enables you to customize what is allowed 
both incoming and outgoing through your firewall. With this 
feature, you can narrowly define what kind of communication is 
permitted between computers on the Internet and computers on 
your private network.
To facilitate configuring your SOHO, WatchGuard identifies 
several commonly used services. A service is the combination of 
protocol(s) and port numbers associated with a specific application 
or communication type.