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| Penumbra Enables Peer-To-Peer Networks Directly Via WiFi |
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posted by Editor
on Monday January 29, @07:26PM
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Penumbra is a prototype of a broadcast-based wireless network protocol that enables peer-to-peer networks to be constructed directly via WiFi connections. Normally, WiFi is used by mobile computing devices to communicate with "hot spot" access points that are physically connected to the Internet. With Penumbra, mobile computing devices can use WiFi to establish peer-to-peer connections directly with each other. Packets sent to a peer running Penumbra can be forwarded to other peers that are in range of that peer, and so on. The result is a free, distributed 54Mbps network that is based entirely on WiFi connections. Penumbra is designed to coexist with existing WEP- or WPA-encrypted private networks, so small changes are needed in the operating system's WiFi drivers to allow unencrypted packets to be sent and received without disturbing any existing association (see modified Linux drivers). An early version of a Usermode Daemon is also available, although it does little more than upload and store encrypted packets right now. An RFC for the Penumbra protocol is here.
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