XBOX MN-740, Руководство пользователя

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Glossary 25
port forwarding
When a router, base station, or gateway passes
information between your network and the Internet,
it fi lters the information based on which software
(virtual) ports are being used and how those ports are
confi gured. For example, Internet (HTTP) communication,
by default, travels over port 80. To help ensure security,
all other ports are blocked from transferring data unless
you specifi cally confi gure those ports to “forward”
incoming data to other locations.
PPPoE Acronym for “Point-to-Point Protocol over Ethernet.” A
specifi cation for connecting users on a network to the
Internet by using a broadband connection.
protocol A set of rules and conventions for sending information
over a network. These rules govern the content, format,
timing, sequencing, and error control of messages
exchanged among network devices. For example,
your computer connects to the Internet using the
Transmission Control Protocol/Internet Protocol (TCP/
IP).
router A device (also known as a base station or gateway) that
acts as a central point for networked devices, receiving
and forwarding data between them. A router typically is
a point of connection that sends data between several
networks. It often can be programmed with rules about
what data is acceptable to send and receive.
signal strength The strength of the wireless signal. The signal strength
between two wireless devices decreases the farther
apart you place the devices.
SSID
Acronym for “Service Set Identifi er,” also known as
a “wireless network name.” An SSID value uniquely
identifi es your wireless network and is case sensitive.
static IP address A static Internet Protocol (IP) address is a unique
identifi er that is assigned permanently to a computer by
a network administrator or an Internet service provider
(ISP). IP addresses are required in order for computers
to fi nd one another and communicate over the Internet.
Contrast with “dynamic IP address.”
subnet mask Similar in form to an Internet Protocol (IP) address,
a subnet mask is provided by your Internet service
provider (ISP) and used to confi gure a networked
computer for proper communication with a network. An
example of a subnet mask value is 255.255.0.0.