domain name. Name identifying an organization on the Inter- net. Domain names consists of sets of characters separated by periods (dots). The last set of characters identifies the type of organization (.GOV, .COM, .EDU) or geographical location (.US,
.SE).
domain name server. Network computer that matches host names to IP addresses in response to Domain Name System (DNS) requests.
Domain Name System (DNS). Standard method of identifying computers by name rather than by numeric IP address.
DSL. Digital Subscriber Line. Modems on either end of a single twisted pair wire that delivers ISDN Basic Rate Access.
DTE. Data Terminal Equipment. Network node that passes information to a DCE (modem) for transmission. A computer or router communicating through a modem is an example of a DTE device.
DTR. Data Terminal Ready. Circuit activated to indicate to a modem (or other DCE) that the computer (or other DTE) is ready to send and receive data.
echo interval. Frequency with which the router sends out echo requests.
Enable. This toggle button is used to enable/disable the con- figured tunnel.
