Appendix C - Glossary - D-Link DWC-1000 User Manual

Appendix C - Glossary

Appendix C - Glossary
Access Point - A device that provides network access to wireless devices.
ARP - Address Resolution Protocol. Broadcast protocol for mapping IP addresses to MAC addresses.
CHAP - Challenge-Handshake Authentication Protocol. Protocol for authenticating users to an ISP.
DDNS - Dynamic DNS. System for updating domain names in real time. Allows a domain name to be assigned to
a device with a dynamic IP address.
DHCP - Dynamic Host Configuration Protocol. Protocol for allocating IP addresses dynamically so that addresses
can be reused when hosts no longer need them.
DNS - Domain Name System. A hierarchical distributed naming system for computers, services, or any resource
connected to the Internet or a private network.
FQDN - Fully qualified domain name. Complete domain name, including the host portion. Example: serverA.
companyA.com.
FTP - File Transfer Protocol. Protocol for transferring files between network nodes.
HTTP - Hypertext Transfer Protocol. Protocol used by web browsers and web servers to transfer files.
IKE - Internet Key Exchange. Mode for securely exchanging encryption keys in ISAKMP as part of building a VPN
tunnel.
IP - Internet Protocol. The principal communications protocol used for relaying datagrams known as network
packets across an internetwork using the Internet Protocol Suite. IP is responsible for routing packets across
network boundaries. It is the primary protocol that establishes the Internet.
IPSec - IP security. Suite of protocols for securing VPN tunnels by authenticating or encrypting IP packets in a
data stream. IPSec operates in either transport mode (encrypts payload but not packet headers) or tunnel mode
(encrypts both payload and packet headers).
ISAKMP - Internet Key Exchange Security Protocol. Protocol for establishing security associations and
cryptographic keys on the Internet.
ISP - Internet service provider.
MAC Address - Media-access-control address. Unique physical-address identifier attached to a network adapter.
MTU - Maximum transmission unit. Size, in bytes, of the largest packet that can be passed on. The MTU for
Ethernet is a 1500-byte packet.
NAT - Network Address Translation. Process of rewriting IP addresses as a packet passes through a controller
or firewall. NAT enables multiple hosts on a LAN to access the Internet using the single public IP address of the
LAN's gateway controller.
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