Omron WE70-AP, Operation Manual

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Appendices
Appendices
Appendices-11
To connect to an external network, the address
must be converted to a global IP address.
Following IP addresses can be used as private
IP addresses:
Class A:10.0.0.0-10.255.255.225
Class B:172.16.0.0-172.31.255.225
Class C:192.168.0.0-192.168.255.225
LAN (Local Area Network)
A small-scale network in an office floor or a cam-
pus.
MAC address (Media Access Control Address)
A physical address set to every Ethernet and
wireless LAN card.
This address is managed by LAN card manufac-
turers so that it should be unique in the world.
Ethernet and wireless LAN cards transmit a
frame based on this address.
Network
A communication system connecting devices
such as servers, workstations, and PCs through
cables and broadband lines to transfer data.
Password
A character string that is required for a user to
enter for network access, to ensure network
security. Access becomes available when a user
enters a correct string registered beforehand.
Shared Key Authentication
A type of authentication that confirms that a com-
mon encryption key is shared by those that com-
municate using a configured encryption key for
encrypted communication with an access point in
a wireless LAN.
A system that does not authenticate is called an
"open system". SSID (Service Set-IDentifier)
A name to identify a network group when more
than one network group is configured in one
communication zone of a wireless LAN.
Subnet Mask
A bit mask used to identify network address and
host address blocks of an IP address.
Suppose an IP address of a host is "192.168.0.1"
and its subnet mask is "255.255.255.0".
Multiplying the IP address and the subnet mask
as base 2 numbers generates its network
address as "192.168.0" and the remainder "1" is
its host address.
TCP/IP
A basic and most widely used protocol of the
Internet, supported by major OSs such as
Windows.
Some protocols such as SMTP and FTP use this
protocol.
URL (Uniform Resource Locator)
is specified for access to a site on the Internet.
Omron's URL is http://www.fa.omron.co.jp/.
WEP (Wired Equivalent Privacy)
A typical function to transmit data in a wireless
LAN using encryption.
It can prevent tapping of wireless LAN communi-
cation.
WWW Browser
An application to be used to view a WWW site
and search a WWW server.
Such applications include Internet Explorer and
Netscape Navigator.