Appendix C: Glossary - SMC Networks SMC EZ Connect SMCHT-ETH User Manual

Appendix C: Glossary

Default Password
A password set by the manufacturer that is unique to each device and is used to generate a
Default Encryption Key (DEK). The DEK is used only for the purpose of encrypting management
commands that change the NEK so that the NEK is never sent in the clear over the powerline.
DHCP
Dynamic Host Configuration Protocol is a method in which IP addresses are assigned by server
dynamically to the clients on the network. DHCP is used for Dynamic IP Addressing and requires
a dedicated DHCP server on the network.
Encryption Key (EK)
64-bit pattern generated by a key derivation function. An EK is used in an encryption algorithm
to add security to transmissions between HomePlug devices in a logical network.
Ethernet
Ethernet is a 10/100Mbps network that runs over dedicated home/office wiring. Users must be
wired to the network at all times to gain access.
Gateway
A gateway is a hardware and software device that connects two dissimilar systems, such as a
LAN and a mainframe. In Internet terminology, a gateway is another name for a router.
Generally a gateway is used as a funnel for all traffic to the Internet.
IEEE
The Institute of Electrical and Electronics Engineers. The IEEE describes itself as "the world's
largest technical professional society—promoting the development and application of electro
technology and allied sciences for the benefit of humanity, the advancement of the profession,
and the wellbeing of our members."
Local Area Network (LAN)
A LAN is a group of computers, each equipped with the appropriate network adapter card
connected by cable/air, that share applications, data, and peripherals. All connections are
made via cable or wireless media, but a LAN does not use telephone services. It typically spans
a single building or campus.
Logical Network
Two or more HomePlug devices that share a common Network Encryption Key (NEK) and that
communicate with encrypted transmissions.
Network
A network is a system of computers that is connected. Data, files, and messages can be
transmitted over this network. Networks may be local or wide area networks.
Network Password
A password set by the user that generates the NEK and defines the user's logical network.
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