User's Guide

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 Port Forwarding — A process that allows remote devices to connect to a specific computer
within a priv
ate LAN.
 Port Number — A 16-bit number used by the TCP and UDP protocols to
direct traffic on a
TCP/IP host.
Certain port numbers are standard for common applications
.
 Protocol — A standard that enables connection, communication, and data transfer between
computing endpoints.
 Proxy — A firewall mechanism that rep
laces the IP address of a host on the internal (protect
ed)
network with its own IP ad
dress for all traffic passing
through it.
 Router — A
device that directs traffic from one network to anot
her.
 RSSI — Received Signal
Strength Indicator. An
estimated measure of how well a device can
hear a signal
from an access point or router. RSSI value is pulled from the device’s Wi-Fi card
(hence “received” signal strength), so it is not the same as transmit power from an access
point
or router.
 SIM — Sub
scriber Identification Module. Found in LTE and GSM network technology, the SI
M is
a card containing identification inform
ation for the subscriber and their account. The SIM ca
rd
can be moved to different devices.
 SMTP — Sim
ple Mail Transfer Protocol. The standard protocol for sending emails across th
e
Interne
t
.
 SNMP —
Simple Network Management Protocol. An Internet protocol used to manage an
d
monitor network devices and their fun
c
tions.
 SSID — Service Set IDentif
ier. The name assigned to a Wi-Fi
network.
 TCP/IP —
Transmission Control Protocol/Internet Protocol. The set of co
mmunications
protoc
ols used for the Internet and other similar
networks.
 TFTP —
Trivial File Transfer Protocol. An Internet software utility for transfer
ring files that is
simpler to use than FTP, but does not provide user authenticatio
n
and directory visibility
supp
orted by
FTP.
 Telnet — A
user command and underlying TCP/IP protocol that allows a user on one comp
uter
to log into another computer that is part of the same network.
 TTY —
Text Telephones (TTY), also known as Telecommunications Device for
the Deaf (TDD), are
used
by the deaf, hard–of–hearing, and individuals with speech impairments to communicate.
 UDP —
User Datagram Protocol (UDP) is a communications protocol that offers a limited
amount of
service when messages are exchanged between comput
ers in a network that uses
the Internet
Protocol (IP). UDP is an alternative to the Transmission Control Protocol (TCP)
and,
together with IP, is somet
imes referred to as UDP/IP.