Canon 802.11g 54M WLAN - Manual (Page 65)

802.11g 4-Port Wireless LAN Broadband Router
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4. Glossary
Ad-Hoc Mode
An Ad-hoc integrated wireless LAN is a group of computers, each has a Wireless LAN
adapter, Connected as an independent wireless LAN. Ad hoc wireless LAN is applicable at
a departmental scale for a branch or SOHO operation.
BSS ID
A specific Ad hoc LAN is called a Basic Service Set (BSS). Computers in a BSS must be
configured with the same BSS ID.
DHCP (Dynamic Host Configuration Protocol)
DHCP is a protocol for dynamically assigning IP addresses to networked computers. With
DHCP, a computer can automatically be given a unique IP address each time it connects to
a network—making IP address management an easier task for network administrators.
When a computer logs on to the network, the DHCP server selects an IP address from a
master list and assigns it to the system.
DMZ Host (De-Militarized Zone Host)
DMZ is the portion of a private network that is visible through the network’s firewalls. DMZ
Host allows a local computer exposed to the Internet. Therefore, an incoming packet will be
checked by Firewall and NAT algorithms in the router then pass to the DMZ host when
packet is not sent by hacker and is not limited by Virtual Server list. Besides, there are
some IP protocols that do not have port number information. There is no way to use Virtual
Server setting to forward incoming packet. Thus, DMZ host is the way to forward such kind
of packets. If you try to enable DMZ host and setup Virtual Server, the precedence is Virtual
Server and then DMZ. For example, the incoming packet will be checked with Firewall rules,
Virtual Server rules and
then DMZ host.
DSSS (Direct-Sequencing Spread-Spectrum)
DSSS operate over the radio airwaves in the unlicensed ISM band (industrial, scientific,
medical). DSSS uses a radio transmitter to spread data packets over a fixed range of
frequency band.
Encryption
It’s a security method that applies a specific algorithm to data in order to alter the data
appearance and prevent other devices from reading the information.
Firewall
A firewall is a device that sits between your computer and the Internet that prevents
unauthorized access to or from your network. A firewall can be a computer using firewall