[Coco] Gene's Web Page

[Gene Heskett]

On Tuesday 03 September 2013 06:03:44 Johann Klasek did opine:

> On Mon, Sep 02, 2013 at 08:55:18PM -0500, Michael Graham wrote:
> > >For the curious, the last hop should look something like this:
> > >
> > >traceroute to coyoteden.dyndns-free.com (204.111.64.149), 30 hops
> > >max, 60 byte packets
> > >
> > >  1  n64s149.fttx.shentel.net (204.111.64.149)  0.248 ms  0.325 ms 
> > >  0.419 ms
> > >
> > >I see it is also responding to a ping, which it shouldn't be. The
> > >ping filter is on.
> > >
> > >Can you folks ping it from your locations?
> > 
> > I'm not able to ping it from here.
> 
> Because ICMP pings are blocked or filtered, traceroute tools based on
> UDP+ICMP do not provide any usable information on the last hop. To use
> tcptraceroute maybe the better way:
> 
> tcptraceroute coyoteden.dyndns-free.com 85
> Tracing the path to coyoteden.dyndns-free.com (204.111.64.149) on TCP
> port 85, 30 hops max [..]
>  5  vlan713.wien1.aco.net (193.171.13.9)  0.482 ms  0.462 ms *
>  6  vlan71.wien21.aco.net (193.171.23.18)  0.755 ms  0.687 ms  0.668 ms
>  7  bundle-ether-21-73.core21.aco.net (193.171.23.42)  1.496 ms  1.054
> ms  0.921 ms 8  212.73.203.17  0.603 ms  0.684 ms  0.726 ms
>  9  ae-0-11.bar1.Vienna1.Level3.net (4.69.153.149)  8.115 ms  0.854 ms 
> 0.908 ms 10  ae-12-12.ebr2.Frankfurt1.Level3.net (4.69.153.146)  12.326
> ms  13.368 ms  12.355 ms 11  ae-63-63.csw1.Frankfurt1.Level3.net
> (4.69.163.2)  12.438 ms  12.330 ms  12.367 ms 12  * * *
> 13  xe-0-4-0-7.r02.frnkge03.de.bb.gin.ntt.net (129.250.8.205)  12.957 ms
>  12.914 ms  12.934 ms 14  ae-2.r20.frnkge04.de.bb.gin.ntt.net
> (129.250.5.217)  13.045 ms  13.067 ms  13.616 ms 15 
> ae-1.r21.asbnva02.us.bb.gin.ntt.net (129.250.3.20)  99.076 ms  113.021
> ms  99.202 ms 16  ae-2.r00.asbnva02.us.bb.gin.ntt.net (129.250.3.114) 
> 100.150 ms  100.168 ms  100.077 ms 17 
> xe-0-1-0-9.r00.asbnva02.us.ce.gin.ntt.net (168.143.97.178)  99.845 ms 
> 99.689 ms  99.835 ms 18  * * *
> 19  * * n64s149.fttx.shentel.net (204.111.64.149) [closed] 1507.610 ms
> 
> "closed" means that the port responds with TCP RST, hence is reachable.
> 
> I suspect the router is answering and does not correctly handle the port
> forwarding (as already mentioned). Any other port show nearly the same
> trace ... for example 5013:
> 
> [..]
> 17  xe-0-1-0-9.r00.asbnva02.us.ce.gin.ntt.net (168.143.97.178)  106.726
> ms  106.764 ms  106.758 ms 18  * * *
> 19  * * *
> 20  * * n64s149.fttx.shentel.net (204.111.64.149) [closed] 878.924 ms
> 
> 
> 
> Johann
> 
I'll keep looking when I'm up for the day.  Obviously there is some 
interaction I'm missing.
 
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Cheers, Gene
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