Hello again,
2008/3/14, Renaud Allard <renaud@???>:
>
>
> Zbigniew Szalbot wrote:
>
> >
> > I have eventually connected my box straight to the modem and:
> > 1/ I am still getting timeouts to Yahoo (though they claim not to block us)
> > 2/ I can at least use (tcp)traceroute and here are some logs. Can you
> > help me interpret them? Am I right in thinking that the connection
> > times out somewhere at yahoo border machines?
> >
> > If I remeber correctly, this one is from tcptraceroute a.mx.mail.yahoo.com 25:
> >
> > 1 cxw209.internetdsl.tpnet.pl (83.19.156.209) 9.729 ms 9.325 ms 9.994 ms
> > 2 byd-ru1.idsl.tpnet.pl (213.25.2.164) 12.584 ms 86.020 ms 9.611 ms
> > 3 z.byd-ru1.do.byd-r2.tpnet.pl (213.25.5.165) 9.702 ms 9.718 ms 9.981 ms
> > 4 so-0-3-0.war-r4.tpnet.pl (194.204.175.221) 12.253 ms 12.686 ms 12.306 ms
> > 5 po8-0.nykcr2.NewYork.opentransit.net (193.251.251.69) 126.360 ms
> > 149.051 ms 351.378 ms
> > 6 gi0-0-0.nykcr3.NewYork.opentransit.net (193.251.240.230) 119.395
> > ms 120.847 ms 119.446 ms
> > 7 po10-0.ashcr2.Ashburn.opentransit.net (193.251.243.1) 121.575 ms
> > 121.886 ms 121.404 ms
> > 8 ge-0-1-0-0.atlcr3.Atlanta.opentransit.net (193.251.243.178)
> > 136.551 ms 136.275 ms 172.029 ms
> > 9 pos0-0-2-0.daltr1.Dallas.opentransit.net (193.251.241.17) 158.566
> > ms 158.634 ms 158.842 ms
> > 10 so-3-0-0-0.dalcr2.Dallas.opentransit.net (193.251.241.18) 157.308
> > ms !A 157.348 ms !A 156.995 ms !A
> >
>
>
> Is it all the input your tcptraceroute gives? I don't see any reason why
> it stops at the 10th hop, except if you told tcptraceroute to do so. By
> default it should use 30 hops.
>
> The "normal" traceroute:
>
> 20 ge-8-1.bas-g2.mud.yahoo.com (68.142.193.215) 158.201 ms
> ge-9-1.bas-g2.mud.yahoo.com (68.142.193.223) 155.621 ms
> ge-8-1.bas-g1.mud.yahoo.com (68.142.193.213) 159.981 ms
> 21 * * *
> 22 * * *
>
>
> This one doesn't help very much as this kind of output was expected
> because their firewall is probably configured to block this kind of
> traffic. Hence the need for the tcptraceroute on port 25.
>
> By the output you gave it seems there is a routing problem in Dallas
> opentransit, but as the "normal" traceroute passes it (although not
> through the same routers), it seems that the output of your
> tcptraceroute is not complete. I would at least have expected one line
> of * * * * if there was a problem at opentransit.
>
> Could you verify that you allowed more than 10 hops in your
> tcptraceroute? And if not, try to do the test again allowing at least 30
> hops.
It is not an accident. tcptraceroute completes after 10th hop,
although when run it says it will try 30 hops.
1 cxw209.internetdsl.tpnet.pl (83.19.156.209) 10.123 ms
10.003 ms
9.862 ms
2 byd-ru1.idsl.tpnet.pl (213.25.2.164) 9.846 ms
9.737 ms
9.873 ms
3 z.byd-ru1.do.byd-r2.tpnet.pl (213.25.5.165) 9.894 ms
9.947 ms
9.856 ms
4 so-0-3-0.war-r4.tpnet.pl (194.204.175.221) 12.126 ms
13.114 ms
13.050 ms
5 po8-0.nykcr2.NewYork.opentransit.net (193.251.251.69) 164.299 ms
143.981 ms
151.666 ms
6 po11-0.nykcr3.NewYork.opentransit.net (193.251.242.210) 119.746 ms
120.082 ms
119.959 ms
7 po10-0.ashcr2.Ashburn.opentransit.net (193.251.243.1) 121.710 ms
121.445 ms
121.647 ms
8 so-1-0-0-0.atlcr3.Atlanta.opentransit.net (193.251.240.154) 135.011 ms
135.315 ms
134.833 ms
9 pos0-1-0-0.daltr1.Dallas.opentransit.net (193.251.241.34) 156.559 ms
156.123 ms
155.847 ms
10 so-4-0-0-0.dalcr2.Dallas.opentransit.net (193.251.241.33) 154.001 ms !A
162.448 ms !A
154.438 ms !A
I the above was with -d switch. I also tried with -q10 and -w 10 but
it failed to make any difference.
1 cxw209.internetdsl.tpnet.pl (83.19.156.209) 9.857 ms 10.108 ms
10.193 ms 9.647 ms 9.935 ms 9.957 ms 9.951 ms 9.950 ms 9.955 ms
9.940 ms
2 byd-ru1.idsl.tpnet.pl (213.25.2.164) 9.876 ms 9.729 ms 9.905 ms
9.957 ms 9.960 ms 10.506 ms 9.348 ms 9.932 ms 9.957 ms 9.933 ms
3 z.byd-ru1.do.byd-r2.tpnet.pl (213.25.5.165) 9.963 ms 9.905 ms
9.902 ms 10.037 ms 9.843 ms 9.949 ms 9.954 ms 9.951 ms 9.997 ms
9.885 ms
4 so-0-3-0.war-r4.tpnet.pl (194.204.175.221) 12.325 ms 13.090 ms
12.456 ms 12.601 ms 12.036 ms 12.265 ms 12.303 ms 12.713 ms
13.029 ms 12.031 ms
5 po8-0.nykcr2.NewYork.opentransit.net (193.251.251.69) 125.723 ms
126.694 ms 126.588 ms 126.652 ms 126.519 ms 126.290 ms 132.423 ms
197.523 ms 126.237 ms 126.191 ms
6 po11-0.nykcr3.NewYork.opentransit.net (193.251.242.210) 119.518
ms 120.116 ms 120.197 ms 120.063 ms 120.148 ms 120.415 ms
120.075 ms 120.050 ms 119.812 ms 119.980 ms
7 po10-0.ashcr2.Ashburn.opentransit.net (193.251.243.1) 121.159 ms
121.478 ms 121.547 ms 121.241 ms 121.231 ms 121.576 ms 121.657 ms
121.178 ms 121.192 ms 120.826 ms
8 so-1-0-0-0.atlcr3.Atlanta.opentransit.net (193.251.240.154)
134.744 ms 134.301 ms 142.143 ms 135.339 ms 134.626 ms 135.094 ms
134.786 ms 134.077 ms 139.585 ms 135.047 ms
9 pos0-1-0-0.daltr1.Dallas.opentransit.net (193.251.241.34) 155.962
ms 156.594 ms 155.997 ms 155.310 ms 199.256 ms 163.423 ms
156.215 ms 156.237 ms 156.045 ms 155.794 ms
10 so-4-0-0-0.dalcr2.Dallas.opentransit.net (193.251.241.33) 155.244
ms !A 154.551 ms !A 325.813 ms !A 154.517 ms !A 158.555 ms !A
159.111 ms !A 157.175 ms !A 163.361 ms !A 155.662 ms !A 156.155 ms
!A
Thansk!
--
Zbigniew Szalbot
