|
||||||||
At 11:44 07/01/2004 +0100, Magne Andreassen wrote: >Brandon Holland wrote > > > > Does M0n0wall's pptp server work with windows clients? Or > > should I redirect all pptp connections to my main office > > server and from there authenticate everyone? > > > >Windows clients works, though there have been some trouble >with XP and packet loss. But I don't think everyone has had >this problem. I do have these problems with a gateway between a 802.11b LAN and a bidirectionnal sat link in a remote village in south west of France ! The 802.11b LAN is quite lossy, since some clients are far away (up to 2 km), with trees and partial interferences with a military radio station nearby... and I have all kind of clients, including WinXP ones. I was actually investigating these problems on my own with a fully featured FreeBSD system when I saw your message. When measuring the loss on the 802.11b LAN with iPerf, I get between 0,2% and 5% loss, depending on the weather (wind mainly, because of the trees) and the military radio station emitting or not. I have some out of order packets too. The WinXP problem seems to be independant of the lossy link problem, since it keeps on behaving poorly, even when connected directly on the hub with ethernet wire. Beside that, my problem is a bit complexified by the use of RFC 1323 options, since the [bandwidth * latency] product of the bidi sat link is too high for standard TCP (TCP RWIN goes up to 120 KBytes and jitter can be up to 500 ms). I have already got a satisfying solution though, with PPPoE (user-PPP) instead of PPTP (mpd), both with lossy links and with WinXP. I found out that disabling the "speed sync" option in ppp.conf was making the difference with PPPoE and lossy links, but haven't found any similar solution yet with mpd's PPTP. My first guess for the WinXP problem was MTU/MRU issues, but I tried all kinds of setting without any success :-( I would be grateful to you if you had some hints to spare about these problems. -- Didier Lebrun Le bourg - 81140 - Vaour (France) tél: 05.63.53.73.41 mailto:dl at vaour dot net (MIME, ISO latin 1) http://didier.quartier-rural.org/ |