120 40515-100a
HiPR900 User Manual
ix
TFTP
Trivial File Transfer Protocol - A version of the TCP/IP FTP protocol that has no
directory or password capability.
Topology
The physical layout of a network.
Transparent
A transparent unit transmits all data without regard to special characters, etc.
UDP
User Datagram Protocol - A network protocol for transmitting data that does not
require acknowledgement from the recipient of the data that is sent.
Upgrade
To replace existing software or firmware with a newer version.
URL
Universal Resource Locator - The address of a file located on the Internet.
VIS
Vehicular Information Solutions. Dataradio’s name for a series of products spe-
cially designed for mobile data.
VPN
Virtual Private Network - A security measure to protect data as it leaves one net-
work and goes to another over the Internet.
WINIPCFG
A Windows 98 and Me utility that displays the IP address for a particular net-
working device.
WLAN
Wireless Local Area Network - A group of computers and associated devices that
communicate with each other wirelessly.