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HomePlug Encryption and Protection Schemes
The HomePlug device uses encryption to block outside access. The key is set by using the
configuration software on the CD. By default, the protection is enabled. However, it is
recommended that you change the default encryption key. All your HomePlug devices
must use the same encryption key in order for the computers to be networked. Make sure
that all devices are loaded with the same key.
0.3 Basic Requirements
- At least 2 HomePlug devices
- Available USB port for each computer
- Available empty power outlet
- Standard home power line wiring
- CD-ROM drive
0.4 Limitations of Current HomePlug Technology and What's Ahead.
The current technology and firmware of HomePlug have the following limitations as of
Spring, 2002. The range of a HomePlug device reaches up to 900 feet under the same
power grid or power transformer. The connection cannot pass through any UPS
(Uninterruptible Power Supply). There is also a limitation to the number of HomePlug
Ethernet Bridges. Because of how IP Packets and buffer zones were designed, there can
only be two HomePlug Ethernet Bridges on the same HomePlug network at all times.
However, there can be an unlimited number of nodes present on the network, technically
speaking.
0.5 Nodes and Bridges
There is a difference between Nodes and Bridges. A Node is any device that resides in or is
connected directly onto an existing network. A computer with a network card connected to a
switch is a Node. A Mac connected to a hub is also a Node. A Bridge is used when
connecting one type or group of networks with another
ype or group of networks.
t
Connecting every computer from one network with another network would result in a mess
of cables, so instead, a bridge is brought in to have a single connection between the
networks instead of many. A Bridge in HomePlug terms functions like a concentration
device that connects multiple computers onto the HomePlug network using one HomePlug
device.
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