Glossary and Acronyms
B
Glossary and Acronyms
Backup Routes
Allows user to back up the pri-
mary connection with alternative connections to
the Internet/mobile network. Each backup con-
nection can have assigned a priority. Switching
between connections is done based upon set pri-
orities and the state of the connections.
DHCP
The Dynamic Host Configuration Protocol
(DHCP) is a network protocol used to configure
devices that are connected to a network so they
can communicate on that network using the Inter-
net Protocol (IP). The protocol is implemented in
a client-server model, in which DHCP clients re-
quest configuration data, such as an IP address,
a default route, and one or more DNS server ad-
dresses from a DHCP server.
DHCP client
Requests network configuration
from
DHCP server
Answers configuration request by
and sends network configuration
details.
DNS
The Domain Name System (DNS) is a hi-
erarchical distributed naming system for comput-
ers, services, or any resource connected to the
Internet or a private network. It associates various
information with domain names assigned to each
of the participating entities. Most prominently, it
translates easily memorized domain names to
the numerical IP addresses needed for the pur-
pose of locating computer services and devices
worldwide. By providing a worldwide, distributed
keyword-based redirection service, the Domain
Name System is an essential component of the
functionality of the Internet.
DynDNS client
DynDNS service lets you ac-
cess the router remotely using an easy to remem-
ber custom hostname. This client monitors the
router’s
and updates it whenever it
changes.
GRE
Generic Routing Encapsulation (GRE) is a
tunneling protocol that can encapsulate a wide
variety of network layer protocols inside virtual
point-to-point links over an Internet Protocol net-
work. It is possible to create four different tunnels.
HTTP
The Hypertext Transfer Protocol (HTTP)
is an application protocol for distributed, collab-
orative, hypermedia information systems. HTTP
is the foundation of data communication for the
World Wide Web.
Hypertext is structured text that uses logi-
cal links (hyperlinks) between nodes containing
text. HTTP is the protocol to exchange or transfer
hypertext.
HTTPS
The Hypertext Transfer Protocol Secure
(HTTPS) is a communications protocol for secure
communication over a computer network, with
especially wide deployment on the Internet. Tech-
nically, it is not a protocol in and of itself; rather,
it is the result of simply layering the Hypertext
Transfer Protocol (HTTP) on top of the SSL/TLS
protocol, thus adding the security capabilities of
SSL/TLS to standard HTTP communications.
IP address
An Internet Protocol address (IP
address) is a numerical label assigned to each
device (e.g., computer, printer) participating in
a computer network that uses the Internet Pro-
tocol for communication. An IP address serves
two principal functions: host or network interface
identification and location addressing. Its role has
been characterized as follows:
A name indicates
what we seek. An address indicates where it is. A
route indicates how to get there
The designers of the Internet Protocol defined an
IP address as a 32-bit number and this system,
known as Internet Protocol Version 4 (
), is
still in use today. However, due to the enormous
growth of the Internet and the predicted deple-
tion of available addresses, a new version of IP
(
), using 128 bits for the address, was devel-
oped in 1995.
IP masquerade
Kind of
IP masquerading
see
IPsec
Internet Protocol Security (IPsec) is a
protocol suite for securing Internet Protocol (IP)
communications by authenticating and encrypt-
ing each IP packet of a communication ses-
sion. The router allows user to select encap-
sulation mode (tunnel or transport), IKE mode
(main or aggressive), IKE Algorithm, IKE Encryp-
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