comcast routing problems

[roger.levasseur at comcast.net]

Comcast from Tyngsboro, Mass

My browser can access it and I can traceroute to it.

Not till hop #4 do the routings hit a similar route.


rml at beaker(3) traceroute linuxquestions.org
traceroute to linuxquestions.org (75.126.162.205), 30 hops max, 40 byte packets
 1  192.168.1.1 (192.168.1.1)  0.329 ms   0.330 ms   0.325 ms
 2  96.128.48.1 (96.128.48.1)  10.517 ms   10.362 ms   10.289 ms
 3  ge-5-37-ur01.lowell.ma.boston.comcast.net (68.85.161.41)  10.511 ms   10.823 ms   12.740 ms
 4  be-21-ar01.needham.ma.boston.comcast.net (68.87.144.157)  12.874 ms   16.452 ms   12.716 ms
 5  pos-0-0-0-0-ar01.chartford.ct.hartford.comcast.net (68.85.162.70)  15.865 ms   18.433 ms   17.527 ms
 6  pos-2-4-0-0-cr01.newyork.ny.ibone.comcast.net (68.86.90.61)  18.851 ms   19.035 ms   18.663 ms
 7  pos-1-11-0-0-cr01.mclean.va.ibone.comcast.net (68.86.85.13)  24.578 ms   25.566 ms   25.175 ms
 8  pos-1-13-0-0-cr01.atlanta.ga.ibone.comcast.net (68.86.85.233)  51.157 ms   52.333 ms   52.513 ms
 9  pos-1-12-0-0-cr01.dallas.tx.ibone.comcast.net (68.86.85.157)  72.303 ms   72.471 ms   72.130 ms
10  softlayer-cr01.dallas.tx.ibone.comcast.net (75.149.228.34)  196.235 ms   192.574 ms   188.793 ms
11  po2.dar01.dal01.dallas-datacenter.com (66.228.118.205)  72.959 ms   78.114 ms   76.758 ms
12  po1.fcr02.dal01.dallas-datacenter.com (66.228.118.178)  124.881 ms   125.043 ms   119.462 ms
13  www.linuxquestions.org (75.126.162.205)  76.272 ms   77.134 ms   73.655 ms


   -roger


----- Original Message -----
From: "kenta" <kenta at guster.net>
To: "Greater NH Linux User Group" <gnhlug-discuss at mail.gnhlug.org>
Sent: Sunday, November 1, 2009 8:25:59 AM GMT -05:00 US/Canada Eastern
Subject: Re: comcast routing problems

On Sun, Nov 1, 2009 at 8:03 AM, Frank DiPrete <fdiprete at comcast.net> wrote:
>
> Hello All,
>
> Once again I am experiencing a routing problem on Comcast.
> Today I discovered that I cannot reach linuxquestions.org.
>
> My router is returning max hops exceeded. I'm trying to figure out if it
> is a comcast problem, a qwest problem, or a specific comcast problem
> after my super terrific speed upgrade.
>
> Any lucky people out there able to get to them?
>
> Thanks
> -Frank
>
>
> nslookup www.linuxquestions.org
>
> Non-authoritative answer:
> Name:   www.linuxquestions.org
> Address: 75.126.162.205
>
> note: my dhcp router ip is on 75.x.x.x with a /22 mask.

I'm on Comcast as well and on the 75-net.  Looks like it resolved to
the same IP.  I was able to get there quickly and traceroute shows 14
hops:

traceroute to linuxquestions.org (75.126.162.205), 64 hops max, 52 byte packets
 1  unknown (192.168.0.1)  3.782 ms  1.092 ms  1.004 ms
 2  * * *
 3  68.85.141.121 (68.85.141.121)  10.328 ms  8.147 ms  8.187 ms
 4  po-20-ur02.nashua.nh.boston.comcast.net (68.87.147.158)  8.364 ms
7.713 ms  8.556 ms
 5  be-23-ar01.needham.ma.boston.comcast.net (68.87.145.245)  9.493 ms
 13.080 ms  9.990 ms
 6  pos-0-0-0-0-ar01.chartford.ct.hartford.comcast.net (68.85.162.70)
13.964 ms  14.434 ms  13.751 ms
 7  pos-2-4-0-0-cr01.newyork.ny.ibone.comcast.net (68.86.90.61)
17.195 ms  21.918 ms  15.398 ms
 8  pos-1-13-0-0-cr01.mclean.va.ibone.comcast.net (68.86.85.97)
22.957 ms  25.198 ms  23.485 ms
 9  pos-1-14-0-0-cr01.atlanta.ga.ibone.comcast.net (68.86.85.73)
50.479 ms  54.937 ms  69.284 ms
10  pos-1-10-0-0-cr01.dallas.tx.ibone.comcast.net (68.86.86.129)
70.885 ms  71.984 ms  70.089 ms
11  softlayer-cr01.dallas.tx.ibone.comcast.net (75.149.228.34)  70.140
ms  69.979 ms  70.785 ms
12  po2.dar01.dal01.dallas-datacenter.com (66.228.118.205)  71.536 ms
70.304 ms  72.208 ms
13  po1.fcr02.dal01.dallas-datacenter.com (66.228.118.178)  71.948 ms
73.852 ms  72.953 ms
14  www.linuxquestions.org (75.126.162.205)  77.765 ms  71.585 ms  71.520 ms

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