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http://www.networkcomputing.com/1113/1113f2full.html http://www.wireless-nets.com/column_wireless_security.htm http://student.axis.com/proposals/wep.htm http://www.macwindows.com/airportpc.html http://securitygeeks.shmoo.com/article.php?story=2000121306222979 http://www.seattlewireless.net/ http://www.teleport.com/~samc/psuwireless/ http://www.personaltelco.net/download/802.11b-primer.pdf http://slashdot.org/article.pl?sid=00/12/04/1950212&mode=thread&threshold=1 http://www.personaltelco.net/project.html Ya'll, ok...the Lucent Wavelan Silver cards slide nicely into the Wavepoint basestation. We use these puppies as Points of Presence for a metro area business only Internet access solution, full 11MB wireless pipes into a backend with (2) OC3 pipes going up to the big boys...and yea..there are T1 backups and ISDN backups too... The client side demarc points are "very custom" kernel Linux Router Project boxes based in 486's, with Wavelan Silver cards stuck into the isa adapter card, got DMZs, private LAN and all the goodies in there. Anyways we implement network security using first and foremost really hard-to-guess names for the Wavepoint POPs with stupid hard admin passwords. In the Wavepoint there is a nice little setting for only allowing specific MAC (media access control)addresses to connect to the POP. (such as the mac address of the Wavelan Silver card in the client side router) In addition we encrypt the communication bi-directionally at some nifty high bitrate that I cannot remember off the top of my head. On a side note, the Wavelan cards are direct sequence and stick to one channel and that channel is fixed and thus easy to identify using the site survey tool (assuming you know the POP name or IP)...Note..the Breezecom products are frequency hopping and harder to thus get a link on, but they are WAY, and I mean WAY less dependable. That is my version of a warning to would be Breezecom users. Anyways, we actually make solid money with this stuff...if guys want to go solo..thats cool but make sure that you get the right antenna for the right job....and if you are gonna try and setup Points of presence in stead of direct shots...please, for your own sanity...use an array of directionals and not a Uni antenna. Way too much interference on client to Uni uplink usually as the Uni picks up everything in a 360 degree radius... limit your pain with directional arrays is the moral of this story. If you are gonna shoot long distances (15 to 20 miles) use as short a wire from antenna to wavelan card as possible ( db loss can be a pain on long runs) and use a pair of DB24 antennas with line amps. That would be my braindump of the day. enjoy. Oh yeah...add a beowolf cluster in there somewhere just to impress your friends. Back to the Index