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Appendix
59
Glossary
Access point
A network device that contains both a wireless
communication interface and an Ethernet interface, an
access point acts as a bridge between wireless LAN and
wired LAN.
To use an access point for wireless communication, you must
specify an identifier called an SSID, a wireless
communication channel, and a WEP key.
DHCP (Dynamic Host Configuration Protocol)
When building a TCP/IP network, IP addresses must be
specified.
If a DHCP server is present on the network, then it can be
used to automatically allocate IP addresses. DHCP server
functionality is typically provided by a router.
IEEE 802.11b
The standard for wireless LAN that uses the 2.4 GHz
frequency band. Transmission speeds of up to 11 Mbps have
been achieved.
The AIBO
®
Entertainment Robot ERS-7 is based on IEEE
802.11b.
Infrastructure mode
Also called Access Point mode.
Communication mode used between an access point and a
device with a wireless LAN card.
The wireless channel follows the channel defined by the
access point. On the AIBO robot side, it is necessary to
configure the SSID and WEP key to match the access point’s
settings.
IP address
In a TCP/IP network, numbers used to distinguish devices
are called IP addresses. An IP address consists of 4 numbers
from 0-255.
Example:192.168.1.1
10.0.1.1
LAN (Local Area Network)
LAN usually refers to a relatively small-scale network, made
up of Ethernet lines with transfer speeds of 10 Mbps - 100
Mbps. You can use an access point to connect a wireless
LAN to a wired LAN.