DIR-430 RangeBooster G Wireless Router User’s Guide
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Firmware –
Binary code that is written onto read-only memory (ROM) or
programmable read-only memory (PROM). Once firmware has been written onto
the ROM or PROM, it is retained even when the device is turned off.
FTP (File Transfer Protocol) –
Protocol used to transfer the files across the
TCP/IP network. For example, placing the files on to a web server uses FTP
protocol.
Full Duplex –
A device is capable of full duplex when it can send data
simultaneously in both directions.
FQDN
- A fully qualified domain name consists of a host and domain name,
including top-level domain. For example,
www.yahoo.com
is a fully qualified
domain name. www is the host, yahoo is the second-level domain, and.com is the
top level domain.
Gateway –
Device that can connect two different networks supporting two
different communication protocols.
Half Duplex –
A device is capable of half duplex when it can send data in both
directions, but not simultaneously.
Hardware –
All electronic component that are visible physically. Example,
Electronic circuit boards in PCs, Gateway.
Hop -
The link between two network elements.
HTTP (Hyper Text Transfer Protocol) –
Protocol that allows web pages to be
transferred over the Internet.
ISP (Internet Service provider) -
A company that offers internet access,
services such as web site building, virtual hosting to individuals and companies.
LAN (Local Area Network) –
A group of computers/gateways/routers
connected that can communicate each other in a small geographic area.
MAC (Media Access Control) –
Every Ethernet networking device such as
network adapter will be assigned with a unique number so that they can
communicate.
MD5 –
A type of one-way authentication scheme that uses passwords. The
password is hashed and sent over the network so that only the sender and
authenticator know about it. It is not very secure authentication mechanism when
compared to others like EAP-TLS or EAP/TTLS.
NAT (Network Address Translation) –
IP Address is translated for two
purposes by a Gateway that connects two networks. One reason is to save
number of IP addresses on one side, the other, to hide the internal IP addresses
of the hosts. In the case of NAT, when the traffic is generated from your private
network to public Internet, the source IP address of the packet generated will be
transformed to the public address of your Gateway. The end user receiving the
traffic perceives the packet to be generated by your Gateway.
Network Mask –
Look at Subnet Mask.
Packet –
A unit of data routed from an origin to its destination in a network.
Packet Filtering –
Discarding unwanted network traffic based on its originating
address or range of addresses or its type (e-mail, file transfer, etc.).
Ping (Packet INternet Groper) –
Utility used at the network elements (PCs,
routers) to determine whether a particular IP address is reachable and its delay to
reach that network element.
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