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FAQ Specifications

Glossary

License

Configuration: Basic Gateway TCP/IP

Wireless Print Server

USB

 

 

 

 

I

IANA

The Internet Numbering Address Authority (IANA) is an organization under the Internet Architecture

 

Board (IAB) of the Internet Society that oversees IP address allocation. It is under a contract from the

 

U.S. government.

ICMP

Internet Control Message Protocol is a protocol used for error, problem, and informational messages

 

sent between IP hosts and gateways. ICMP messages are processed by the IP software and are not

 

usually apparent to the end-user.

ICSA

The International Computer Security Association is the security industry’s main source of research,

 

intelligence, and product certification.

IEEE

The Institute of Electrical and Electronics Engineers, Inc. (http://www.ieee.org) is an organization that

 

produces standards, technical papers, and symposiums for the electrical and electronic industries and

 

is accredited by ANSI.

IEEE 802.11b

IEEE wireless network standard.

IEEE 802.3

See Ethernet.

IETF

The Internet Engineering Task Force (http://www.ietf.org) is an open international community of

 

network designers, operators, vendors, and researchers to develop and maintain Internet architecture.

 

Technical working groups issue working documents called Internet-Drafts. The IETF publishes review

 

versions of the drafts called requests for comments (RFCs).

IGMP

Internet Group Membership Protocol the Internet multicasting standard. IGMP establishes and

 

maintains a database of group multicast addresses and interfaces to which a multicast router forwards

 

multicast packets. IGMP runs between multicast hosts and their immediately-neighboring multicast

 

routers.

IGMP spoofing

A process where a router acts as an IGMP querier for multicast hosts and an IGMP host to a multicast

 

router.

impedance

The total opposition to ac electron current flow within a device. Impedance is typically 75 ohms for

 

coax cable and other CATV components.

impulse noise

Noise of very short in duration, typically of the order of 10 microseconds. It is caused by electrical

 

transients such as voltage spikes, electric motors turning on, and lightning or switching equipment that

 

bleed over to the cable.

ingress noise

Noise typically caused by discrete frequencies picked up by the cable plant from radio broadcasts or

 

an improperly grounded or shielded home appliance such as a hair dryer. Ingress is the major source

 

of cable system noise.

Internet

A worldwide collection of interconnected networks using TCP/IP.

internetwork

A collection of interconnected networks allowing communication between all devices connected to any

 

network in the collection.

IP

Internet Protocol is a set of standards that enable different types of computers to communicate with

 

one another and exchange data through the Internet. IP provides the appearance of a single,

 

seamless communication system and makes the Internet a virtual network.

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