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Comparison of P2P file sharing tools for LAN parties


When you organize or attend a LAN party, you probably want to exchange files with everybody on the same local network (LAN: Local Area Network). Using the Windows build-in filesharing is often problematic. There are a few programs that allow you to do this easier. Most of them require a server, which can be problematic for small-scale or dynamic LAN parties. In this post I will discuss a few peer-to-peer (P2P) programs that do not require a server. They typically find other nodes using multicast or broadcast.

Below a table with the applications I tested. You can also download the Excel spreadsheet.











































































software p2p dist.leech hashing cross prog.lang last update gui portable runs
Lanshark y n n y python 2007-09 gtk, ok y n
D-LAN y y y y* c++ 2012-01 qt, nice n n
p300 y n n y java 2009-01 java, ugly y y
FAP y n ? n c# 2011-06 win, nice n n
DC++ n -- y y -- -- -- -- y

Comments on the table headers


p2p: peer to peer, if "y" then no server is needed
dist.leech: distributed downloading, leech same file from multiple peers
hashing: make a fingerprint of each file
cross: cross-platform (windows, mac, linux)
prog.lang: programming language
gui: graphical user interface
portable: needs no installation to run
runs: if "y" then I encountered no major problems while executing the program

Discussion


I like the approach taken by D-LAN, it is perfect when file fingerprinting (hashing) time is no issue supports optional fingerprinting. It installs a Windows service, which you can auto-start so file sharing can work even without logging in. But hashing takes a long time, so D-LAN is no good choice if you want to start right away (same for DC++). Note that D-LAN currently is only available for Windows, although they hope to have versions for Mac and Linux soon.

For a simple, easy to setup LAN party, Lanshark is perfect, and p300 could be useful but the latter doesn't have a nice user interface. When you need remote control or remote nodes, or need a one-executable (one-file) tool, p300 is interesting.

DC++ (DirectConnect) is not a P2P filesharing tool and needs a server (hub), but I have included it here because it is often used on LAN parties. There are many different clients and hubs available for DirectConnect.

Lanshark and D-LAN do not update or autodetect its peers properly (tested with one Windows XP SP3 and one Windows 7 PC, both with firewall turned off). D-LAN depends on UDP multicast and does have a few open issues in that respect. FAP is promising but gave errors both on Windows XP SP3 and on Windows 7.

Conclusion


I advise p300. Its interface might be ugly but it works. DC++ is another good alternative if you don't mind installing a server (hub).

update 2012-0307: D-LAN uses fingerprinting, but that can be turned off (see author's comment below)
Excerpt: Which application to use if you are in a LAN and want to share files with everyone in the same network?
Post date: 2012-02-25 18:06:26
Post date GMT: 2012-02-25 17:06:26
Post modified date: 2013-08-13 14:46:45
Post modified date GMT: 2013-08-13 13:46:45
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