Local Peer Discovery
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The Local Peer Discovery protocol, specified as BEP-14, is an extension to the BitTorrent file-distribution system. It is designed to support the discovery of local BitTorrent peers, aiming to minimize the traffic through the Internet service provider's (ISP) channel and maximize use of higher-bandwidth local area network (LAN).
Local Peer Discovery is implemented with HTTP-like messages on User Datagram Protocol (UDP) multicast group 18.104.22.168:6771 which is an administratively scoped multicast address. Since implementation is simple, Local Peer Discovery is implemented in several clients (µTorrent, BitTorrent/Mainline, MonoTorrent, libtorrent and its derivatives, Transmission 2.0, aria2 ). An alternative multicast peer discovery protocol is published as BEP 26, but is not widely adopted since it is considered too complex in comparison.
- "BEP 14: Local Service Discovery".
- "Protocol Design Discussion » Local Peer Discovery Documentation". 2009-10-30. Retrieved 2009-12-12.
- "Announcements » µTorrent 1.7 Release Candidate 6". 2007-06-28. Archived from the original on 2012-09-29. Retrieved 2009-12-12.
- "BitTorrent User Manual". Archived from the original on 2009-12-27. Retrieved 2009-12-12.
- "MonoTorrent 0.80". Retrieved 2010-05-05.
- "libtorrent manual: features". Retrieved 2009-12-12.
- "Changes : Transmission 2.00". 2010-06-15. Archived from the original on 2011-08-31. Retrieved 2010-06-23.
- "Aria2 Manual: OPTIONS". Retrieved 2015-09-14.
- "Transmission Bug Tracker: Zeroconf Peer Advertising and Discovery". Retrieved 2016-10-26.
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