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Proxy
A server that stands between large networks and local networks or computers, typically
to ensure security. One element of a fi rewall.
PTP / IP (Picture Transfer Protocol over Internet Protocol)
An image transfer for transmitting images over wireless LANs. It represents an exten-
sion to the Picture Transfer Protocol (PTP) used to transfer images between cameras and
computers connected via USB cable.
SS-ID (Service Set ID)
An SS-ID prevents interference between devices in different networks. See BSS-ID,
ESS-ID.
Subnet mask
A mask that divides a network into subnets.
TCP/IP (Transmission Control Protocol/Internet Protocol)
A dual protocol consisting of a transport-layer protocol (TCP) that divides data into
packets which it later reassembles, and a network protocol (IP) that handles transmis-
sion of the packets between points in the network. It can be implemented on different
platforms, allowing data to be transmitted between machines with different operating
systems.
TKIP (Temporal Key Integrity Protocol)
An encryption method which uses dynamic keys that change periodically or after a
specifi ed amount of data have been transmitted, making it more secure that WEP,
which uses fi xed keys.
UDP (User Datagram Protocol)
A fast but unreliable transport layer transmission protocol using the DSI model.
USB (Universal Serial Bus)
A standard for connecting peripheral devices. USB supports data transfer rates of up to
480 Mbps (USB 2.0). Devices connected via USB can be connected and disconnected
with the power on (“hot plug”) and do not require separate IRQ (interrupt request)
numbers, preventing confl icts with other devices.
WEP (Wired Equivalent Privacy)
A privacy protocol intended to provided users of wireless networks with the same level
of privacy as a wired network. When using WEP, enter the encryption key provided by
the network administrator.
Wireless LAN access point
A wireless transceiver that acts as the connection between wireless devices and a wire-
less network.