[e2e] RFI: Microsoft accused of TCP standards violation

Jianping Pan jpan at fla.fujitsu.com
Mon Jan 6 16:25:10 PST 2003


It is interesting that we observed the similar behavior
for Netscape Browsers with an Apache Web server. See the
attached tcpdump and httpd.log for reference. It was
done a bit long ago and I do not have their software 
version numbers handy now. Might be able to dig more.

Initially we thought it might be a bug in Netscape. Now
seems that it was *designed* to compete Microsoft's IE 
with Microsoft's IIS.


Best regards,

Jianping

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16:29:53 c.34153 > s.80: S 0:0(0) win 8760 <mss 1460> (DF)
16:29:53 s.80 > c.34153: S 0:0(0) ack 1 win 5840 <mss 1460> (DF)
16:29:53 c.34153 > s.80: . 1:1(0) ack 1 win 8760 (DF)
16:29:53 c.34153 > s.80: P 1:276(275) ack 1 win 8760 (DF)
16:29:53 s.80 > c.34153: . 1:1(0) ack 276 win 6432 (DF)
16:29:53 s.80 > c.34153: . 1:1461(1460) ack 276 win 6432 (DF)
16:29:53 s.80 > c.34153: P 1461:2553(1092) ack 276 win 6432 (DF)
16:29:53 c.34153 > s.80: . 276:276(0) ack 1461 win 8760 (DF)
16:29:53 c.34153 > s.80: . 276:276(0) ack 2553 win 8760 (DF)
16:30:10 s.80 > c.34153: F 2553:2553(0) ack 276 win 6432 (DF)
16:30:10 c.34153 > s.80: . 276:276(0) ack 2554 win 8760 (DF)

c [16:29:53] "GET / HTTP/1.0" 200 2180 "-" 
"Mozilla/4.5 [en] (X11; U; SunOS 5.6 sun4u)"

16:33:42 c.34153 > s.80: P 276:632(356) ack 2554 win 8760 (DF)
16:33:42 s.80 > c.34153: R 2554:2554(0) win 0 (DF)

16:33:42 c.34154 > s.80: S 0:0(0) win 8760 <mss 1460> (DF)
16:33:42 s.80 > c.34154: S 0:0(0) ack 1 win 5840 <mss 1460> (DF)
16:33:42 c.34154 > s.80: . 1:1(0) ack 1 win 8760 (DF)
16:33:42 c.34154 > s.80: P 1:357(356) ack 1 win 8760 (DF)
16:33:42 s.80 > c.34154: . 1:1(0) ack 357 win 6432 (DF)
16:33:42 s.80 > c.34154: P 1:268(267) ack 357 win 6432 (DF)
16:33:42 c.34154 > s.80: . 357:357(0) ack 268 win 8760 (DF)
16:33:59 s.80 > c.34154: F 268:268(0) ack 357 win 6432 (DF)
16:33:59 c.34154 > s.80: . 357:357(0) ack 269 win 8760 (DF)

c [16:33:42] "GET / HTTP/1.0" 304 - "-" 
"Mozilla/4.5 [en] (X11; U; SunOS 5.6 sun4u)"




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