On 3 Mar, Eugene Grosbein wrote: > H! > > I'm experiencing strange problems with HTTP connections between > two machines connected using 100Mbit ethernet switch. > Client is Windows 2000 SP4 (named kost), > server is FreeBSD 4.9/Apache 1.3.27 (named www).
> --------------------------------------------------------------------------- > Packet 90 > TIME: 12:06:51.278337 (0.279509) > LINK: 00:90:27:AB:08:88 -> 00:90:27:35:05:1B type=IP > IP: www -> kost hlen=20 TOS=00 dgramlen=41 id=64CE > MF/DF=0/1 frag=0 TTL=64 proto=TCP cksum=A7ED > TCP: port http -> 2134 seq=1179931920 ack=1524903532 > hlen=20 (data=1) UAPRSF=010000 wnd=58400 cksum=FC43 urg=0 > DATA: t > --------------------------------------------------------------------------- > Packet 91 > TIME: 12:06:51.278615 (0.000278) > LINK: 00:90:27:35:05:1B -> 00:90:27:AB:08:88 type=IP > IP: kost -> www hlen=20 TOS=00 dgramlen=40 id=10E6 > MF/DF=0/1 frag=0 TTL=128 proto=TCP cksum=BBD6 > TCP: port 2134 -> http seq=1524903532 ack=1179931920 > hlen=20 (data=0) UAPRSF=010000 wnd=0 cksum=5466 urg=0 > DATA: <No data> > > As you see, last pair of packets repeats many times > and transfer is stalled here. What's wrong and who is guilty? It looks like the client is the guilty party. The server is sending 1-byte long window probes, and the client is responding with an ACK packet that is advertising a receive window of 0. I'd be suspicious of the application software on the client. Can you try a different web browser, or even fetch the same URL using something like telnet? _______________________________________________ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "[EMAIL PROTECTED]"
