Re: Comcast problems again

Carey Tyler Schug <[email protected]> Tue, 07 Jun 2011 23:48:14 -0500
Newsgroups	gmane.org.user-groups.luni.tech
Message-ID	<[email protected]>
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Been working on my problem after distractions kept me from it.

Ping and tracerout work fine directly or through my firewall.

tcptraceroute works the same either way...doesn't find a destination.

mtr..well,t hat reports losses with my firewall in place,

with firewall:
root@cts-desktop:~# mtr -r facebook.com
HOST: cts-desktop                 Loss%   Snt   Last   Avg  Best  Wrst 
StDev
   1. ctsipcop                      0.0%    10    0.5   0.5   0.5   
0.5   0.0
   2. c-76-16-42-1.hsd1.il.comcast 20.0%    10   21.3  24.4  11.7  
29.7   5.8
   3. te-2-1-ur07.mtprospect.il.ch 10.0%    10    9.2   9.1   8.4  
10.4   0.6
   4. te-1-9-0-3-ar01.elmhurst.il. 10.0%    10   10.0  11.5  10.0  
15.4   1.8
   5. pos-0-0-0-0-ar01.area4.il.ch 20.0%    10   11.0  12.2  10.0  
19.0   2.9
   6. pos-1-12-0-0-cr01.chicago.il 10.0%    10   11.2  12.8  10.9  
20.2   2.9
   7. pos-1-4-0-0-pe01.350ecermak. 20.0%    10   11.5  12.9  10.9  
18.9   2.5
   8. 75.149.230.213               10.0%    10   10.9  17.7  10.6  54.6  
14.0
   9. xe-0-1-0.br01.lga1.tfbnw.net  0.0%    10   40.2  43.7  38.8  
65.7   8.3
  10. xe-4-3-0.bb01.iad1.tfbnw.net 40.0%    10   45.3  48.9  44.2  
67.1   8.9
  11. ae1.dr03.ash2.tfbnw.net      20.0%    10   43.9  52.7  43.8 100.7  
19.6
  12. po1016.csw01b.ash2.tfbnw.net  0.0%    10   50.7  46.4  43.8  
50.7   2.5
  13. www-11-01-ash2.facebook.com  30.0%    10   45.3  45.7  44.3  
50.4   2.1

without firewall:
carey@cts-desktop:~$ mtr -r facebook.com
HOST: cts-desktop                 Loss%   Snt   Last   Avg  Best  Wrst StDev
   1. c-71-201-78-1.hsd1.il.comcas  0.0%    10   16.2 351.4  16.2 1279. 
522.4
   2. te-2-1-ur08.mtprospect.il.ch  0.0%    10    8.5  13.6   7.6  42.7  
11.2
   3. be-50-ar01.area4.il.chicago.  0.0%    10   11.0  11.0  10.1  
11.8   0.6
   4. pos-1-10-0-0-cr01.chicago.il  0.0%    10   12.6  11.6  10.3  
12.6   0.8
   5. pos-1-0-0-0-pe01.350ecermak.  0.0%    10   12.7  12.6  10.7  
15.0   1.1
   6. 75.149.230.213                0.0%    10   12.0  13.3  10.3  
21.3   3.6
   7. xe-0-2-0.br01.lga1.tfbnw.net  0.0%    10   40.2  42.2  38.4  
57.4   5.8
   8. xe-9-2-0.bb01.iad2.tfbnw.net  0.0%    10   45.5  48.4  43.9  
58.6   6.2
   9. ae1.dr01.ash2.tfbnw.net       0.0%    10   60.0  53.7  44.0  89.5  
14.4
  10. po1013.csw01a.ash2.tfbnw.net  0.0%    10   44.2  45.4  43.9  
46.7   0.9
  11. www-10-01-ash2.facebook.com   0.0%    10   43.8  46.2  43.5  
58.9   4.7



and I now notice my firewall report errors on interfaces too:

eth0      Link encap:Ethernet  HWaddr 00:20:AF:C4:4D:9B
           inet addr:10.85.12.1  Bcast:10.85.12.255  Mask:255.255.255.0
           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
           RX packets:141 errors:0 dropped:0 overruns:0 frame:0
           TX packets:127 errors:0 dropped:0 overruns:0 carrier:0
           collisions:2 txqueuelen:1000
           RX bytes:12139 (11.8 Kb)  TX bytes:32796 (32.0 Kb)
           Interrupt:10 Base address:0x300

eth1      Link encap:Ethernet  HWaddr 00:02:44:06:BF:18
           inet addr:76.16.42.213  Bcast:255.255.255.255  Mask:255.255.254.0
           UP BROADCAST NOTRAILERS RUNNING  MTU:1500  Metric:1
           RX packets:1032 errors:0 dropped:0 overruns:0 frame:127
           TX packets:33 errors:0 dropped:0 overruns:0 carrier:0
           collisions:0 txqueuelen:1000
           RX bytes:65293 (63.7 Kb)  TX bytes:5887 (5.7 Kb)
           Interrupt:11 Base address:0x1040

Is this a hardware problem in my interface card, or can comcast be causing this?



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    Been working on my problem after distractions kept me from it.<br>
    <br>
    Ping and tracerout work fine directly or through my firewall.<br>
    <br>
    tcptraceroute works the same either way...doesn't find a
    destination.<br>
    <br>
    mtr..well,t hat reports losses with my firewall in place, <br>
    <br>
    <tt>with firewall:<br>
      root@cts-desktop:~# mtr -r facebook.com
<br>
      HOST: cts-desktop&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Loss%&nbsp;&nbsp; Snt&nbsp;&nbsp; Last&nbsp;&nbsp; Avg&nbsp; Best&nbsp;
      Wrst StDev
<br>
      &nbsp; 1. ctsipcop&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0.0%&nbsp;&nbsp;&nbsp; 10&nbsp;&nbsp;&nbsp; 0.5&nbsp;&nbsp; 0.5&nbsp;&nbsp; 0.5&nbsp;&nbsp;
      0.5&nbsp;&nbsp; 0.0
<br>
      &nbsp; 2. c-76-16-42-1.hsd1.il.comcast 20.0%&nbsp;&nbsp;&nbsp; 10&nbsp;&nbsp; 21.3&nbsp; 24.4&nbsp; 11.7&nbsp;
      29.7&nbsp;&nbsp; 5.8
<br>
      &nbsp; 3. te-2-1-ur07.mtprospect.il.ch 10.0%&nbsp;&nbsp;&nbsp; 10&nbsp;&nbsp;&nbsp; 9.2&nbsp;&nbsp; 9.1&nbsp;&nbsp; 8.4&nbsp;
      10.4&nbsp;&nbsp; 0.6
<br>
      &nbsp; 4. te-1-9-0-3-ar01.elmhurst.il. 10.0%&nbsp;&nbsp;&nbsp; 10&nbsp;&nbsp; 10.0&nbsp; 11.5&nbsp; 10.0&nbsp;
      15.4&nbsp;&nbsp; 1.8
<br>
      &nbsp; 5. pos-0-0-0-0-ar01.area4.il.ch 20.0%&nbsp;&nbsp;&nbsp; 10&nbsp;&nbsp; 11.0&nbsp; 12.2&nbsp; 10.0&nbsp;
      19.0&nbsp;&nbsp; 2.9
<br>
      &nbsp; 6. pos-1-12-0-0-cr01.chicago.il 10.0%&nbsp;&nbsp;&nbsp; 10&nbsp;&nbsp; 11.2&nbsp; 12.8&nbsp; 10.9&nbsp;
      20.2&nbsp;&nbsp; 2.9
<br>
      &nbsp; 7. pos-1-4-0-0-pe01.350ecermak. 20.0%&nbsp;&nbsp;&nbsp; 10&nbsp;&nbsp; 11.5&nbsp; 12.9&nbsp; 10.9&nbsp;
      18.9&nbsp;&nbsp; 2.5
<br>
      &nbsp; 8. 75.149.230.213&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 10.0%&nbsp;&nbsp;&nbsp; 10&nbsp;&nbsp; 10.9&nbsp; 17.7&nbsp; 10.6&nbsp;
      54.6&nbsp; 14.0
<br>
      &nbsp; 9. xe-0-1-0.br01.lga1.tfbnw.net&nbsp; 0.0%&nbsp;&nbsp;&nbsp; 10&nbsp;&nbsp; 40.2&nbsp; 43.7&nbsp; 38.8&nbsp;
      65.7&nbsp;&nbsp; 8.3
<br>
      &nbsp;10. xe-4-3-0.bb01.iad1.tfbnw.net 40.0%&nbsp;&nbsp;&nbsp; 10&nbsp;&nbsp; 45.3&nbsp; 48.9&nbsp; 44.2&nbsp;
      67.1&nbsp;&nbsp; 8.9
<br>
      &nbsp;11. ae1.dr03.ash2.tfbnw.net&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 20.0%&nbsp;&nbsp;&nbsp; 10&nbsp;&nbsp; 43.9&nbsp; 52.7&nbsp; 43.8
      100.7&nbsp; 19.6
<br>
      &nbsp;12. po1016.csw01b.ash2.tfbnw.net&nbsp; 0.0%&nbsp;&nbsp;&nbsp; 10&nbsp;&nbsp; 50.7&nbsp; 46.4&nbsp; 43.8&nbsp;
      50.7&nbsp;&nbsp; 2.5
<br>
      &nbsp;13. www-11-01-ash2.facebook.com&nbsp; 30.0%&nbsp;&nbsp;&nbsp; 10&nbsp;&nbsp; 45.3&nbsp; 45.7&nbsp; 44.3&nbsp;
      50.4&nbsp;&nbsp; 2.1</tt><br>
    <br>
    without firewall:<tt><br>
      carey@cts-desktop:~$ mtr -r facebook.com<br>
      HOST: cts-desktop&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Loss%&nbsp;&nbsp; Snt&nbsp;&nbsp; Last&nbsp;&nbsp; Avg&nbsp; Best&nbsp;
      Wrst StDev<br>
      &nbsp; 1. c-71-201-78-1.hsd1.il.comcas&nbsp; 0.0%&nbsp;&nbsp;&nbsp; 10&nbsp;&nbsp; 16.2 351.4&nbsp; 16.2
      1279. 522.4<br>
      &nbsp; 2. te-2-1-ur08.mtprospect.il.ch&nbsp; 0.0%&nbsp;&nbsp;&nbsp; 10&nbsp;&nbsp;&nbsp; 8.5&nbsp; 13.6&nbsp;&nbsp; 7.6&nbsp;
      42.7&nbsp; 11.2<br>
      &nbsp; 3. be-50-ar01.area4.il.chicago.&nbsp; 0.0%&nbsp;&nbsp;&nbsp; 10&nbsp;&nbsp; 11.0&nbsp; 11.0&nbsp; 10.1&nbsp;
      11.8&nbsp;&nbsp; 0.6<br>
      &nbsp; 4. pos-1-10-0-0-cr01.chicago.il&nbsp; 0.0%&nbsp;&nbsp;&nbsp; 10&nbsp;&nbsp; 12.6&nbsp; 11.6&nbsp; 10.3&nbsp;
      12.6&nbsp;&nbsp; 0.8<br>
      &nbsp; 5. pos-1-0-0-0-pe01.350ecermak.&nbsp; 0.0%&nbsp;&nbsp;&nbsp; 10&nbsp;&nbsp; 12.7&nbsp; 12.6&nbsp; 10.7&nbsp;
      15.0&nbsp;&nbsp; 1.1<br>
      &nbsp; 6. 75.149.230.213&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0.0%&nbsp;&nbsp;&nbsp; 10&nbsp;&nbsp; 12.0&nbsp; 13.3&nbsp; 10.3&nbsp;
      21.3&nbsp;&nbsp; 3.6<br>
      &nbsp; 7. xe-0-2-0.br01.lga1.tfbnw.net&nbsp; 0.0%&nbsp;&nbsp;&nbsp; 10&nbsp;&nbsp; 40.2&nbsp; 42.2&nbsp; 38.4&nbsp;
      57.4&nbsp;&nbsp; 5.8<br>
      &nbsp; 8. xe-9-2-0.bb01.iad2.tfbnw.net&nbsp; 0.0%&nbsp;&nbsp;&nbsp; 10&nbsp;&nbsp; 45.5&nbsp; 48.4&nbsp; 43.9&nbsp;
      58.6&nbsp;&nbsp; 6.2<br>
      &nbsp; 9. ae1.dr01.ash2.tfbnw.net&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0.0%&nbsp;&nbsp;&nbsp; 10&nbsp;&nbsp; 60.0&nbsp; 53.7&nbsp; 44.0&nbsp;
      89.5&nbsp; 14.4<br>
      &nbsp;10. po1013.csw01a.ash2.tfbnw.net&nbsp; 0.0%&nbsp;&nbsp;&nbsp; 10&nbsp;&nbsp; 44.2&nbsp; 45.4&nbsp; 43.9&nbsp;
      46.7&nbsp;&nbsp; 0.9<br>
      &nbsp;11. www-10-01-ash2.facebook.com&nbsp;&nbsp; 0.0%&nbsp;&nbsp;&nbsp; 10&nbsp;&nbsp; 43.8&nbsp; 46.2&nbsp; 43.5&nbsp;
      58.9&nbsp;&nbsp; 4.7<br>
    </tt><br>
    <br>
    <br>
    and I now notice my firewall report errors on interfaces too:<br>
    <br>
    <font face="verdana, ms sans serif, sans serif" size="1"><font
        color="#000000" face="verdana, ms sans serif, sans serif"
        size="1">
        <pre>eth0      Link encap:Ethernet  HWaddr 00:20:AF:C4:4D:9B  
          inet addr:10.85.12.1  Bcast:10.85.12.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:141 errors:0 dropped:0 overruns:0 frame:0
          TX packets:127 errors:0 dropped:0 overruns:0 carrier:0
          collisions:2 txqueuelen:1000 
          RX bytes:12139 (11.8 Kb)  TX bytes:32796 (32.0 Kb)
          Interrupt:10 Base address:0x300 

eth1      Link encap:Ethernet  HWaddr 00:02:44:06:BF:18  
          inet addr:76.16.42.213  Bcast:255.255.255.255  Mask:255.255.254.0
          UP BROADCAST NOTRAILERS RUNNING  MTU:1500  Metric:1
          RX packets:1032 errors:0 dropped:0 overruns:0 frame:127
          TX packets:33 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:65293 (63.7 Kb)  TX bytes:5887 (5.7 Kb)
          Interrupt:11 Base address:0x1040 

Is this a hardware problem in my interface card, or can comcast be causing this?</pre>
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