On Thu, 30 Oct 2003, Lars Eggert wrote: > Daniel Eischen wrote: > > > Greetings, > > > > I'm having a problem receiving UDP messages over a wi interface: > > > > wi1: <Dell TrueMobile 1150 Series PC Card> at port 0x180-0x1bf irq 11 function 0 > > config 1 on pccard0 > > wi1: 802.11 address: 00:02:2d:4a:d8:7d > > wi1: using Lucent Technologies, WaveLAN/IEEE > > wi1: Lucent Firmware: Station (6.10.1) > > wi1: 11b rates: 1Mbps 2Mbps 5.5Mbps 11Mbps > > > > (wi0 is also a 'Dell TrueMobile 1150 Series PC Card' in > > a mini-PCI card, but hangs the system when you try and > > configure it -- so it obviously isn't configured in this > > set up.) > > > > I have a small program that does a trivial UDP test: > > > > http://people.freebsd.org/~deischen/udptest.c > > > > My results show that: > > > > o Receiving large (> 7400 bytes) messages does not work. > > > > o Sending large messages works. > > > > o Sending & receiving large messages over a wired > > interface (dc, fxp, etc) works. > > > > Am I suppose to be able to receive UDP messages larger > > than 7400 bytes over the air? > > Could you post a tcpdump for each case? I wonder if this is related to a > fragmentation issue I've seen in the past.
22:46:43.513038 gpz.foo.bar.com.38340 > vespa.12345: udp 7393 (frag 52198:[EMAIL PROTECTED]) 22:46:48.522475 gpz.foo.bar.com.38340 > vespa.12345: udp 7393 (frag 52199:[EMAIL PROTECTED]) 22:46:53.532018 gpz.foo.bar.com.38340 > vespa.12345: udp 7393 (frag 52200:[EMAIL PROTECTED]) 22:46:58.541178 gpz.foo.bar.com.38340 > vespa.12345: udp 7393 (frag 52201:[EMAIL PROTECTED]) 22:47:03.553048 gpz.foo.bar.com.38340 > vespa.12345: udp 7393 (frag 52202:[EMAIL PROTECTED]) 22:47:08.568862 gpz.foo.bar.com.38340 > vespa.12345: udp 7393 (frag 52203:[EMAIL PROTECTED]) 22:47:13.583328 gpz.foo.bar.com.38340 > vespa.12345: udp 7393 (frag 52204:[EMAIL PROTECTED]) 22:47:18.578512 gpz.foo.bar.com.38340 > vespa.12345: udp 7393 (frag 52205:[EMAIL PROTECTED]) 22:47:23.609098 gpz.foo.bar.com.38340 > vespa.12345: udp 7393 (frag 52206:[EMAIL PROTECTED]) 22:47:28.597680 gpz.foo.bar.com.38340 > vespa.12345: udp 7393 (frag 52207:[EMAIL PROTECTED]) 22:47:33.607059 gpz.foo.bar.com.38340 > vespa.12345: udp 7393 (frag 52208:[EMAIL PROTECTED]) In this case, I ran: gpz $ udptest -D -c -a 192.168.3.31 -m 7393 vespa $ udptest -D vespa (192.168.3.31) is the affected notebook with wi interface. I ran udptest as the server, so all it is doing is trying to receive a message. The tcpdump was done on vespa. The kernel is current from Monday or Tuesdays sources, and I had the same problem with a kernel from August. -- Dan Eischen _______________________________________________ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "[EMAIL PROTECTED]"
