NOPs in TCP traffic

Mon Jul 12 12:17:43 UTC 2004

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On Monday 12 July 2004 12:54, Alan Cox wrote:
> On Mon, Jul 12, 2004 at 12:36:44PM +0100, Tim Waugh wrote:
> > So the best thing to do is to wait until the problem has been pinned
> > down and the traffic shaper manufacturer named?
>
> If only some kernels show it then a trace to compare would also be
> interesting.

Here are the two machines pulling the same page, 
http://www.pumaone.co.uk/services_PumaOneLite.asp, in Konqueror.

Good guy (backup.cb.ath.cx) first, on the -437 kernel:

[root at backup root]# tcpdump port 80
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on eth0, link-type EN10MB (Ethernet), capture size 96 bytes
13:09:17.142256 IP backup.cb.ath.cx.57130 > 66.102.11.104.http: F 
4158299684:4158299684(0) ack 4099329492 win 7364 <nop,nop,timestamp 
1555952382 1019228900>
13:09:17.144824 IP 66.102.11.104.http > backup.cb.ath.cx.57130: . ack 1 win 
16384 <nop,nop,timestamp 1019233152 1555952382>
13:09:17.159653 IP backup.cb.ath.cx.57132 > mail.pumaone.net.http: S 
4213654806:4213654806(0) win 5840 <mss 1460,sackOK,timestamp 1555952404 
0,nop,wscale 0>
13:09:17.166999 IP mail.pumaone.net.http > backup.cb.ath.cx.57132: S 
732246534:732246534(0) ack 4213654807 win 8760 <mss 
1460,nop,nop,sackOK,nop,wscale 0,nop,nop,timestamp 1019215388 1555952404>
13:09:17.167141 IP backup.cb.ath.cx.57132 > mail.pumaone.net.http: . ack 1 win 
5840 <nop,nop,timestamp 1555952412 1019215388>
13:09:17.167799 IP backup.cb.ath.cx.57132 > mail.pumaone.net.http: P 1:353
(352) ack 1 win 5840 <nop,nop,timestamp 1555952412 1019215388>
13:09:17.180520 IP mail.pumaone.net.http > backup.cb.ath.cx.57132: . ack 353 
win 16384 <nop,nop,timestamp 1019215390 1555952412>
13:09:17.196495 IP mail.pumaone.net.http > backup.cb.ath.cx.57132: P 1:246
(245) ack 353 win 16384 <nop,nop,timestamp 1019215391 1555952412>
13:09:17.196605 IP backup.cb.ath.cx.57132 > mail.pumaone.net.http: . ack 246 
win 6432 <nop,nop,timestamp 1555952441 1019215391>
13:09:17.198831 IP mail.pumaone.net.http > backup.cb.ath.cx.57132: P 246:1449
(1203) ack 353 win 16384 <nop,nop,timestamp 1019215391 1555952412>
13:09:17.198942 IP backup.cb.ath.cx.57132 > mail.pumaone.net.http: . ack 1449 
win 8421 <nop,nop,timestamp 1555952443 1019215391>
13:09:17.199898 IP mail.pumaone.net.http > backup.cb.ath.cx.57132: . 1449:2897
(1448) ack 353 win 65151 <nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop>
13:09:17.199991 IP backup.cb.ath.cx.57132 > mail.pumaone.net.http: . ack 2897 
win 11584 <nop,nop,timestamp 1555952444 1019215391>
13:09:17.235482 IP mail.pumaone.net.http > backup.cb.ath.cx.57132: . 2897:4345
(1448) ack 353 win 65151 <nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop>
13:09:17.235598 IP backup.cb.ath.cx.57132 > mail.pumaone.net.http: . ack 4345 
win 14480 <nop,nop,timestamp 1555952480 1019215391>
13:09:17.236473 IP mail.pumaone.net.http > backup.cb.ath.cx.57132: . 4345:5793
(1448) ack 353 win 65151 <nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop>
13:09:17.236521 IP backup.cb.ath.cx.57132 > mail.pumaone.net.http: . ack 5793 
win 17376 <nop,nop,timestamp 1555952481 1019215391>
13:09:17.245754 IP mail.pumaone.net.http > backup.cb.ath.cx.57132: . 5793:7241
(1448) ack 353 win 65151 <nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop>
13:09:17.245876 IP backup.cb.ath.cx.57132 > mail.pumaone.net.http: . ack 7241 
win 20272 <nop,nop,timestamp 1555952490 1019215391>
13:09:17.259299 IP mail.pumaone.net.http > backup.cb.ath.cx.57132: . 7241:8689
(1448) ack 353 win 65151 <nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop>
13:09:17.259419 IP backup.cb.ath.cx.57132 > mail.pumaone.net.http: . ack 8689 
win 23168 <nop,nop,timestamp 1555952504 1019215391>
13:09:17.274713 IP mail.pumaone.net.http > backup.cb.ath.cx.57132: . 
8689:10137(1448) ack 353 win 65151 
<nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop>
13:09:17.274837 IP backup.cb.ath.cx.57132 > mail.pumaone.net.http: . ack 10137 
win 26064 <nop,nop,timestamp 1555952519 1019215391>
13:09:17.285921 IP mail.pumaone.net.http > backup.cb.ath.cx.57132: . 
10137:11585(1448) ack 353 win 65151 
<nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop>
13:09:17.286059 IP backup.cb.ath.cx.57132 > mail.pumaone.net.http: . ack 11585 
win 28960 <nop,nop,timestamp 1555952530 1019215391>
13:09:17.294693 IP mail.pumaone.net.http > backup.cb.ath.cx.57132: . 
11585:13033(1448) ack 353 win 65151 
<nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop>
13:09:17.294783 IP backup.cb.ath.cx.57132 > mail.pumaone.net.http: . ack 13033 
win 31856 <nop,nop,timestamp 1555952539 1019215391>
13:09:17.305688 IP mail.pumaone.net.http > backup.cb.ath.cx.57132: . 
13033:14481(1448) ack 353 win 65151 
<nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop>
13:09:17.318869 IP mail.pumaone.net.http > backup.cb.ath.cx.57132: . 
14481:15929(1448) ack 353 win 65151 
<nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop>
13:09:17.327253 IP backup.cb.ath.cx.57132 > mail.pumaone.net.http: . ack 14481 
win 34752 <nop,nop,timestamp 1555952572 1019215391>
13:09:17.327321 IP backup.cb.ath.cx.57132 > mail.pumaone.net.http: . ack 15929 
win 37648 <nop,nop,timestamp 1555952572 1019215391>
13:09:17.330465 IP mail.pumaone.net.http > backup.cb.ath.cx.57132: . 
15929:17377(1448) ack 353 win 65151 
<nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop>
13:09:17.330622 IP backup.cb.ath.cx.57132 > mail.pumaone.net.http: . ack 17377 
win 40544 <nop,nop,timestamp 1555952575 1019215391>
13:09:17.342551 IP mail.pumaone.net.http > backup.cb.ath.cx.57132: . 
17377:18825(1448) ack 353 win 65151 
<nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop>
13:09:17.342702 IP backup.cb.ath.cx.57132 > mail.pumaone.net.http: . ack 18825 
win 43440 <nop,nop,timestamp 1555952587 1019215391>
13:09:17.354928 IP mail.pumaone.net.http > backup.cb.ath.cx.57132: . 
18825:20273(1448) ack 353 win 65151 
<nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop>
13:09:17.355111 IP backup.cb.ath.cx.57132 > mail.pumaone.net.http: . ack 20273 
win 46336 <nop,nop,timestamp 1555952600 1019215391>
13:09:17.366094 IP mail.pumaone.net.http > backup.cb.ath.cx.57132: . 
20273:21721(1448) ack 353 win 65151 
<nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop>
13:09:17.366251 IP backup.cb.ath.cx.57132 > mail.pumaone.net.http: . ack 21721 
win 49232 <nop,nop,timestamp 1555952611 1019215391>
13:09:17.380691 IP mail.pumaone.net.http > backup.cb.ath.cx.57132: P 
21721:22869(1148) ack 353 win 65151 
<nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop>
13:09:17.380844 IP backup.cb.ath.cx.57132 > mail.pumaone.net.http: . ack 22869 
win 49232 <nop,nop,timestamp 1555952625 1019215391>
13:09:17.381418 IP backup.cb.ath.cx.57132 > mail.pumaone.net.http: F 353:353
(0) ack 22869 win 49232 <nop,nop,timestamp 1555952626 1019215391>
13:09:17.391965 IP mail.pumaone.net.http > backup.cb.ath.cx.57132: . ack 354 
win 16384 <nop,nop,timestamp 1019215411 1555952626>
13:09:17.392185 IP mail.pumaone.net.http > backup.cb.ath.cx.57132: F 
22869:22869(0) ack 354 win 16384 <nop,nop,timestamp 1019215411 1555952626>
13:09:17.392240 IP backup.cb.ath.cx.57132 > mail.pumaone.net.http: . ack 22870 
win 49232 <nop,nop,timestamp 1555952637 1019215411>
13:09:17.754390 IP backup.cb.ath.cx.57133 > mail.marketacumen.com.http: S 
4217780483:4217780483(0) win 5840 <mss 1460,sackOK,timestamp 1555952999 
0,nop,wscale 0>
13:09:17.763084 IP mail.marketacumen.com.http > backup.cb.ath.cx.57133: S 
182153044:182153044(0) ack 4217780484 win 8760 <mss 
1460,nop,nop,sackOK,nop,wscale 0,nop,nop,timestamp 1019233214 1555952999>
13:09:17.763207 IP backup.cb.ath.cx.57133 > mail.marketacumen.com.http: . ack 
1 win 5840 <nop,nop,timestamp 1555953008 1019233214>
13:09:17.764099 IP backup.cb.ath.cx.57133 > mail.marketacumen.com.http: P 
1:364(363) ack 1 win 5840 <nop,nop,timestamp 1555953009 1019233214>
13:09:17.827216 IP mail.marketacumen.com.http > backup.cb.ath.cx.57133: . ack 
364 win 16384 <nop,nop,timestamp 1019233221 1555953009>
13:09:18.009521 IP mail.marketacumen.com.http > backup.cb.ath.cx.57133: . 
1:1449(1448) ack 364 win 16384 <nop,nop,timestamp 1019233239 1555953009>
13:09:18.009596 IP backup.cb.ath.cx.57133 > mail.marketacumen.com.http: . ack 
1449 win 8688 <nop,nop,timestamp 1555953254 1019233239>
13:09:18.009988 IP mail.marketacumen.com.http > backup.cb.ath.cx.57133: P 
1449:1817(368) ack 364 win 16384 <nop,nop,timestamp 1019233239 1555953009>
13:09:18.010036 IP backup.cb.ath.cx.57133 > mail.marketacumen.com.http: . ack 
1817 win 11584 <nop,nop,timestamp 1555953255 1019233239>
13:09:18.013597 IP mail.marketacumen.com.http > backup.cb.ath.cx.57133: P 
1817:1822(5) ack 364 win 16384 <nop,nop,timestamp 1019233239 1555953009>
13:09:18.013710 IP backup.cb.ath.cx.57133 > mail.marketacumen.com.http: . ack 
1822 win 11584 <nop,nop,timestamp 1555953258 1019233239>
13:09:18.525440 IP backup.cb.ath.cx.57133 > mail.marketacumen.com.http: P 
364:1093(729) ack 1822 win 11584 <nop,nop,timestamp 1555953770 1019233239>
13:09:18.652162 IP mail.marketacumen.com.http > backup.cb.ath.cx.57133: . ack 
1093 win 16384 <nop,nop,timestamp 1019233303 1555953770>
13:09:18.731087 IP mail.marketacumen.com.http > backup.cb.ath.cx.57133: P 
1822:2299(477) ack 1093 win 16384 <nop,nop,timestamp 1019233311 1555953770>
13:09:18.731190 IP backup.cb.ath.cx.57133 > mail.marketacumen.com.http: . ack 
2299 win 14480 <nop,nop,timestamp 1555953976 1019233311>
13:09:19.528353 IP backup.cb.ath.cx.57134 > mail.pumaone.net.http: S 
4223422734:4223422734(0) win 5840 <mss 1460,sackOK,timestamp 1555954773 
0,nop,wscale 0>
13:09:19.536303 IP mail.pumaone.net.http > backup.cb.ath.cx.57134: S 
747670089:747670089(0) ack 4223422735 win 8760 <mss 
1460,nop,nop,sackOK,nop,wscale 0,nop,nop,timestamp 1019215625 1555954773>
13:09:19.536428 IP backup.cb.ath.cx.57134 > mail.pumaone.net.http: . ack 1 win 
5840 <nop,nop,timestamp 1555954781 1019215625>
13:09:19.537189 IP backup.cb.ath.cx.57134 > mail.pumaone.net.http: P 1:689
(688) ack 1 win 5840 <nop,nop,timestamp 1555954782 1019215625>
13:09:19.552315 IP backup.cb.ath.cx.57133 > mail.marketacumen.com.http: F 
1093:1093(0) ack 2299 win 14480 <nop,nop,timestamp 1555954797 1019233311>
13:09:19.557117 IP backup.cb.ath.cx.57135 > mail.pumaone.net.http: S 
4217132485:4217132485(0) win 5840 <mss 1460,sackOK,timestamp 1555954802 
0,nop,wscale 0>
13:09:19.559870 IP mail.marketacumen.com.http > backup.cb.ath.cx.57133: . ack 
1094 win 16384 <nop,nop,timestamp 1019233394 1555954797>
13:09:19.560088 IP mail.marketacumen.com.http > backup.cb.ath.cx.57133: F 
2299:2299(0) ack 1094 win 16384 <nop,nop,timestamp 1019233394 1555954797>
13:09:19.560144 IP backup.cb.ath.cx.57133 > mail.marketacumen.com.http: . ack 
2300 win 14480 <nop,nop,timestamp 1555954805 1019233394>
13:09:19.564784 IP mail.pumaone.net.http > backup.cb.ath.cx.57135: S 
747990723:747990723(0) ack 4217132486 win 8760 <mss 
1460,nop,nop,sackOK,nop,wscale 0,nop,nop,timestamp 1019215628 1555954802>
13:09:19.564888 IP backup.cb.ath.cx.57135 > mail.pumaone.net.http: . ack 1 win 
5840 <nop,nop,timestamp 1555954810 1019215628>
13:09:19.565842 IP backup.cb.ath.cx.57135 > mail.pumaone.net.http: P 1:690
(689) ack 1 win 5840 <nop,nop,timestamp 1555954811 1019215628>
13:09:19.597969 IP mail.pumaone.net.http > backup.cb.ath.cx.57134: . ack 689 
win 16384 <nop,nop,timestamp 1019215632 1555954782>
13:09:19.618882 IP mail.pumaone.net.http > backup.cb.ath.cx.57134: P 1:402
(401) ack 689 win 16384 <nop,nop,timestamp 1019215634 1555954782>
13:09:19.618988 IP backup.cb.ath.cx.57134 > mail.pumaone.net.http: . ack 402 
win 6432 <nop,nop,timestamp 1555954864 1019215634>
13:09:19.634199 IP mail.pumaone.net.http > backup.cb.ath.cx.57135: . ack 690 
win 16384 <nop,nop,timestamp 1019215635 1555954811>
13:09:19.646911 IP mail.pumaone.net.http > backup.cb.ath.cx.57135: . 1:1449
(1448) ack 690 win 16384 <nop,nop,timestamp 1019215636 1555954811>
13:09:19.647044 IP backup.cb.ath.cx.57135 > mail.pumaone.net.http: . ack 1449 
win 8688 <nop,nop,timestamp 1555954892 1019215636>
13:09:19.646942 IP mail.pumaone.net.http > backup.cb.ath.cx.57135: P 1449:1811
(362) ack 690 win 16384 <nop,nop,timestamp 1019215636 1555954811>
13:09:19.647100 IP backup.cb.ath.cx.57135 > mail.pumaone.net.http: . ack 1811 
win 11584 <nop,nop,timestamp 1555954892 1019215636>
13:09:19.656952 IP backup.cb.ath.cx.57135 > mail.pumaone.net.http: F 690:690
(0) ack 1811 win 11584 <nop,nop,timestamp 1555954902 1019215636>
13:09:19.668494 IP mail.pumaone.net.http > backup.cb.ath.cx.57135: . ack 691 
win 16384 <nop,nop,timestamp 1019215639 1555954902>
13:09:19.668711 IP mail.pumaone.net.http > backup.cb.ath.cx.57135: F 1811:1811
(0) ack 691 win 16384 <nop,nop,timestamp 1019215639 1555954902>
13:09:19.668785 IP backup.cb.ath.cx.57135 > mail.pumaone.net.http: . ack 1812 
win 11584 <nop,nop,timestamp 1555954914 1019215639>
13:09:29.630019 IP mail.pumaone.net.http > backup.cb.ath.cx.57134: F 402:402
(0) ack 689 win 16384 <nop,nop,timestamp 1019216635 1555954864>
13:09:29.669234 IP backup.cb.ath.cx.57134 > mail.pumaone.net.http: . ack 403 
win 6432 <nop,nop,timestamp 1555964916 1019216635>

Now the possible bad boy, -478, again in Konqueror.  I stopped the tcpdump 
after a minute or so with nothing showing in the browser.

[root at fastcat root]# tcpdump port 80
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on eth0, link-type EN10MB (Ethernet), capture size 96 bytes
13:12:52.774832 IP fastcat1.cb.ath.cx.33647 > mail.pumaone.net.http: S 
1895838732:1895838732(0) win 5840 <mss 1460,sackOK,timestamp 16526534 
0,nop,wscale 7>
13:12:52.784397 IP mail.pumaone.net.http > fastcat1.cb.ath.cx.33647: S 
3086153146:3086153146(0) ack 1895838733 win 8760 <mss 
1460,nop,nop,sackOK,nop,wscale 0,nop,nop,timestamp 1019250599 16526534>
13:12:52.784462 IP fastcat1.cb.ath.cx.33647 > mail.pumaone.net.http: . ack 1 
win 45 <nop,nop,timestamp 16526544 1019250599>
13:12:52.785744 IP fastcat1.cb.ath.cx.33647 > mail.pumaone.net.http: P 1:376
(375) ack 1 win 45 <nop,nop,timestamp 16526545 1019250599>
13:12:52.799930 IP mail.pumaone.net.http > fastcat1.cb.ath.cx.33647: . ack 376 
win 16009 <nop,nop,timestamp 1019250600 16526545>
13:12:52.815713 IP mail.pumaone.net.http > fastcat1.cb.ath.cx.33647: P 1:246
(245) ack 376 win 16384 <nop,nop,timestamp 1019250602 16526545>
13:12:52.815790 IP fastcat1.cb.ath.cx.33647 > mail.pumaone.net.http: . ack 246 
win 50 <nop,nop,timestamp 16526575 1019250602>
13:12:52.816402 IP mail.pumaone.net.http > fastcat1.cb.ath.cx.33647: P 
246:1449(1203) ack 376 win 16384 <nop,nop,timestamp 1019250602 16526545>
13:12:52.816432 IP fastcat1.cb.ath.cx.33647 > mail.pumaone.net.http: . ack 
1449 win 65 <nop,nop,timestamp 16526576 1019250602>
13:12:52.828604 IP mail.pumaone.net.http > fastcat1.cb.ath.cx.33647: . 
1449:2897(1448) ack 376 win 65128 
<nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop>
13:12:52.828687 IP fastcat1.cb.ath.cx.33647 > mail.pumaone.net.http: . ack 
2897 win 90 <nop,nop,timestamp 16526588 1019250602>
13:12:54.057460 IP fastcat1.cb.ath.cx.33648 > mail.marketacumen.com.http: S 
1907877772:1907877772(0) win 5840 <mss 1460,sackOK,timestamp 16527817 
0,nop,wscale 7>
13:12:54.064887 IP mail.marketacumen.com.http > fastcat1.cb.ath.cx.33648: S 
2584857692:2584857692(0) ack 1907877773 win 8760 <mss 
1460,nop,nop,sackOK,nop,wscale 0,nop,nop,timestamp 1019268494 16527817>
13:12:54.064957 IP fastcat1.cb.ath.cx.33648 > mail.marketacumen.com.http: . 
ack 1 win 45 <nop,nop,timestamp 16527825 1019268494>
13:12:54.072130 IP fastcat1.cb.ath.cx.33648 > mail.marketacumen.com.http: P 
1:387(386) ack 1 win 45 <nop,nop,timestamp 16527832 1019268494>
13:12:54.083409 IP mail.marketacumen.com.http > fastcat1.cb.ath.cx.33648: . 
ack 387 win 15998 <nop,nop,timestamp 1019268495 16527832>
13:12:54.482192 IP mail.marketacumen.com.http > fastcat1.cb.ath.cx.33648: . 
1:1449(1448) ack 387 win 16384 <nop,nop,timestamp 1019268535 16527832>
13:12:54.482269 IP fastcat1.cb.ath.cx.33648 > mail.marketacumen.com.http: . 
ack 1449 win 67 <nop,nop,timestamp 16528242 1019268535>
13:12:54.482290 IP mail.marketacumen.com.http > fastcat1.cb.ath.cx.33648: P 
1449:1817(368) ack 387 win 16384 <nop,nop,timestamp 1019268535 16527832>
13:12:54.482317 IP fastcat1.cb.ath.cx.33648 > mail.marketacumen.com.http: . 
ack 1817 win 90 <nop,nop,timestamp 16528242 1019268535>
13:12:54.482329 IP mail.marketacumen.com.http > fastcat1.cb.ath.cx.33648: P 
1817:1822(5) ack 387 win 16384 <nop,nop,timestamp 1019268535 16527832>
13:12:54.482351 IP fastcat1.cb.ath.cx.33648 > mail.marketacumen.com.http: . 
ack 1822 win 90 <nop,nop,timestamp 16528242 1019268535>
13:12:58.235161 IP mail.pumaone.net.http > fastcat1.cb.ath.cx.33647: . 
2897:2987(90) ack 376 win 65128 
<nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop>
13:12:58.235713 IP fastcat1.cb.ath.cx.33647 > mail.pumaone.net.http: . ack 
2987 win 90 <nop,nop,timestamp 16531996 1019250602>
13:12:58.298608 IP fastcat1.cb.ath.cx.33648 > mail.marketacumen.com.http: P 
387:1139(752) ack 1822 win 90 <nop,nop,timestamp 16532059 1019268535>
13:12:58.436377 IP mail.marketacumen.com.http > fastcat1.cb.ath.cx.33648: . 
ack 1139 win 16384 <nop,nop,timestamp 1019268931 16532059>
13:12:58.515139 IP mail.marketacumen.com.http > fastcat1.cb.ath.cx.33648: P 
1822:2299(477) ack 1139 win 16384 <nop,nop,timestamp 1019268938 16532059>
13:12:58.515207 IP fastcat1.cb.ath.cx.33648 > mail.marketacumen.com.http: . 
ack 2299 win 113 <nop,nop,timestamp 16532276 1019268938>
13:13:03.704487 IP mail.pumaone.net.http > fastcat1.cb.ath.cx.33647: . 
2987:3077(90) ack 376 win 65128 
<nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop>
13:13:03.704665 IP fastcat1.cb.ath.cx.33647 > mail.pumaone.net.http: . ack 
3077 win 94 <nop,nop,timestamp 16537466 1019250602>
13:13:08.508142 IP mail.marketacumen.com.http > fastcat1.cb.ath.cx.33648: F 
2299:2299(0) ack 1139 win 16384 <nop,nop,timestamp 1019269938 16532276>
13:13:08.547422 IP fastcat1.cb.ath.cx.33648 > mail.marketacumen.com.http: . 
ack 2300 win 113 <nop,nop,timestamp 16542310 1019269938>
13:13:09.173329 IP mail.pumaone.net.http > fastcat1.cb.ath.cx.33647: . 
3077:3171(94) ack 376 win 65128 
<nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop>
13:13:09.173892 IP fastcat1.cb.ath.cx.33647 > mail.pumaone.net.http: . ack 
3171 win 94 <nop,nop,timestamp 16542936 1019250602>
13:13:14.642176 IP mail.pumaone.net.http > fastcat1.cb.ath.cx.33647: . 
3171:3265(94) ack 376 win 65128 
<nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop>
13:13:14.642338 IP fastcat1.cb.ath.cx.33647 > mail.pumaone.net.http: . ack 
3265 win 94 <nop,nop,timestamp 16548405 1019250602>
13:13:20.111723 IP mail.pumaone.net.http > fastcat1.cb.ath.cx.33647: . 
3265:3359(94) ack 376 win 65128 
<nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop>
13:13:20.111891 IP fastcat1.cb.ath.cx.33647 > mail.pumaone.net.http: . ack 
3359 win 94 <nop,nop,timestamp 16553876 1019250602>
13:13:25.580343 IP mail.pumaone.net.http > fastcat1.cb.ath.cx.33647: . 
3359:3453(94) ack 376 win 65128 
<nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop>
13:13:25.580960 IP fastcat1.cb.ath.cx.33647 > mail.pumaone.net.http: . ack 
3453 win 94 <nop,nop,timestamp 16559346 1019250602>
13:13:31.049947 IP mail.pumaone.net.http > fastcat1.cb.ath.cx.33647: . 
3453:3547(94) ack 376 win 65128 
<nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop>
13:13:31.050110 IP fastcat1.cb.ath.cx.33647 > mail.pumaone.net.http: . ack 
3547 win 94 <nop,nop,timestamp 16564816 1019250602>
13:13:36.518418 IP mail.pumaone.net.http > fastcat1.cb.ath.cx.33647: . 
3547:3641(94) ack 376 win 65128 
<nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop>
13:13:36.518981 IP fastcat1.cb.ath.cx.33647 > mail.pumaone.net.http: . ack 
3641 win 94 <nop,nop,timestamp 16570286 1019250602>
13:13:41.988622 IP mail.pumaone.net.http > fastcat1.cb.ath.cx.33647: . 
3641:3735(94) ack 376 win 65128 
<nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop>
13:13:41.988788 IP fastcat1.cb.ath.cx.33647 > mail.pumaone.net.http: . ack 
3735 win 94 <nop,nop,timestamp 16575756 1019250602>
13:13:41.992540 IP fastcat1.cb.ath.cx.33648 > mail.marketacumen.com.http: F 
1139:1139(0) ack 2300 win 113 <nop,nop,timestamp 16575760 1019269938>
13:13:41.995858 IP fastcat1.cb.ath.cx.33650 > mail.pumaone.net.http: S 
1957547338:1957547338(0) win 5840 <mss 1460,sackOK,timestamp 16575763 
0,nop,wscale 7>
13:13:42.000774 IP mail.marketacumen.com.http > fastcat1.cb.ath.cx.33648: . 
ack 1140 win 16384 <nop,nop,timestamp 1019273287 16575760>
13:13:42.007413 IP mail.pumaone.net.http > fastcat1.cb.ath.cx.33650: S 
3440719728:3440719728(0) ack 1957547339 win 8760 <mss 
1460,nop,nop,sackOK,nop,wscale 0,nop,nop,timestamp 1019255521 16575763>
13:13:42.007484 IP fastcat1.cb.ath.cx.33650 > mail.pumaone.net.http: . ack 1 
win 45 <nop,nop,timestamp 16575775 1019255521>
13:13:42.008664 IP fastcat1.cb.ath.cx.33650 > mail.pumaone.net.http: P 1:708
(707) ack 1 win 45 <nop,nop,timestamp 16575776 1019255521>
13:13:42.034680 IP mail.pumaone.net.http > fastcat1.cb.ath.cx.33650: . ack 708 
win 15677 <nop,nop,timestamp 1019255524 16575776>
13:13:42.045901 IP mail.pumaone.net.http > fastcat1.cb.ath.cx.33650: P 1:335
(334) ack 708 win 16384 <nop,nop,timestamp 1019255525 16575776>
13:13:42.045964 IP fastcat1.cb.ath.cx.33650 > mail.pumaone.net.http: . ack 335 
win 50 <nop,nop,timestamp 16575814 1019255525>
13:13:42.058325 IP fastcat1.cb.ath.cx.33650 > mail.pumaone.net.http: F 708:708
(0) ack 335 win 50 <nop,nop,timestamp 16575826 1019255525>
13:13:42.065223 IP mail.pumaone.net.http > fastcat1.cb.ath.cx.33650: . ack 709 
win 16384 <nop,nop,timestamp 1019255527 16575826>
13:13:42.065400 IP mail.pumaone.net.http > fastcat1.cb.ath.cx.33650: F 335:335
(0) ack 709 win 16384 <nop,nop,timestamp 1019255527 16575826>
13:13:42.065439 IP fastcat1.cb.ath.cx.33650 > mail.pumaone.net.http: . ack 336 
win 50 <nop,nop,timestamp 16575833 1019255527>
13:13:47.455888 IP mail.pumaone.net.http > fastcat1.cb.ath.cx.33647: . 
3735:3829(94) ack 376 win 65128 
<nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop>
13:13:47.456103 IP fastcat1.cb.ath.cx.33647 > mail.pumaone.net.http: . ack 
3829 win 94 <nop,nop,timestamp 16581225 1019250602>
13:13:52.925320 IP mail.pumaone.net.http > fastcat1.cb.ath.cx.33647: . 
3829:3923(94) ack 376 win 65128 
<nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop>
13:13:52.925484 IP fastcat1.cb.ath.cx.33647 > mail.pumaone.net.http: . ack 
3923 win 94 <nop,nop,timestamp 16586695 1019250602>
13:13:58.396121 IP mail.pumaone.net.http > fastcat1.cb.ath.cx.33647: . 
3923:4017(94) ack 376 win 65128 
<nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop>
13:13:58.396284 IP fastcat1.cb.ath.cx.33647 > mail.pumaone.net.http: . ack 
4017 win 94 <nop,nop,timestamp 16592167 1019250602>
13:14:03.863135 IP mail.pumaone.net.http > fastcat1.cb.ath.cx.33647: . 
4017:4111(94) ack 376 win 65128 
<nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop>
13:14:03.863324 IP fastcat1.cb.ath.cx.33647 > mail.pumaone.net.http: . ack 
4111 win 94 <nop,nop,timestamp 16597635 1019250602>
13:14:09.331734 IP mail.pumaone.net.http > fastcat1.cb.ath.cx.33647: . 
4111:4205(94) ack 376 win 65128 
<nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop>
13:14:09.334992 IP fastcat1.cb.ath.cx.33647 > mail.pumaone.net.http: . ack 
4205 win 94 <nop,nop,timestamp 16603107 1019250602>

> > Like Andy, I have been putting off the call to NTL, because I know
> > exactly how that will go.
>
> If they have any left find an NTL cablemodem business customer and check
> the problem occurs for them too. NTL's service to the business customers
> is a bit better than to others.
>
> Alan (an ex NTL internet customer and very glad to be _ex_)

NTL are okay if you maintain low expectations in my experience.  I still have 
a little fund of gratitude left for them from rescuing me from ISDN.  Still, 
where is this 1.5Mbps upgrade they took credit for and have not delivered...

- -Andy

- -- 
Automatic actions for USB cameras, cardreaders, memory sticks, MP3 players
http://warmcat.com/usbautocam
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