Appendix C Glossary
Access PointAccess points are way stations in a wireless LAN that are connected to an Ethernet hub or server. Users can roam within the range of access points and their wireless device connections are passed from one access point to the next.
AuthenticationAuthentication refers to the verification of a transmitted message's integrity.
DMZDMZ (DeMilitarized Zone) is a part of an network that is located between a secure LAN and an insecure WAN. DMZ provides a way for some clients to have unrestricted access to the Internet.
Beacon IntervalRefers to the interval between packets sent by access points for the purposes of synchronizing wireless LANs.
DHCPDHCP (Dynamic Host Configuration Protocol) software automatically assigns IP addresses to client stations logging onto a TCP/IP network, which eliminates the need to manually assign permanent IP addresses.
DNSDNS stands for Domain Name System. DNS converts machine names to the IP addresses that all machines on the net have. It translates from name to address and from address to name.
Domain NameThe domain name typically refers to an Internet site address.
FilterFilters are schemes which only allow specified data to be transmitted. For example, the router can filter specific IP addresses so that users cannot connect to those addresses.
FirewallFirewalls are methods used to keep networks secure from malicious intruders and unauthorized access. Firewalls use filters to prevent unwanted packets from being transmitted. Firewalls are typically used to provide secure access to the Internet while keeping an organization's public Web server separate from the internal LAN.
FirmwareFirmware refers to memory chips that retain their content without electrical power (for example, BIOS ROM). The router firmware stores settings made in the interface.
FragmentationRefers to the breaking up of data packets during transmission.
FTPFTP (File Transfer Protocol) is used to transfer files over a TCP/IP network, and is typically used for
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