Rookie

Potential route loop TWC residentail

I'm seeing a potential routing loop on the IPv6 network. Unable to access any IPv6 sites. Anyone else?

 

 

Host Loss% Snt Last Avg Best Wrst StDev
1. 2606:a000:<removed for privacy> 0.0% 19 0.3 0.3 0.3 0.4 0.0
2. ???
3. 2606:a000:0:4::8:23b6 0.0% 19 13.0 21.8 11.1 71.3 14.9
4. 2606:a000:0:4::6:10 0.0% 19 14.5 17.6 14.5 27.9 2.9
5. 2606:a000:0:4::6:ab 0.0% 19 22.7 27.7 15.5 85.7 17.2
6. 2606:a000:0:4::f:2c9 21.1% 19 15.4 17.2 12.5 37.3 6.0
7. 2606:a000:0:4::f:2c8 0.0% 19 22.5 21.9 13.3 27.5 4.0
8. 2606:a000:0:4::f:2c9 36.8% 19 15.5 18.2 13.1 27.0 3.6
9. 2606:a000:0:4::f:2c8 0.0% 18 15.1 27.4 15.1 113.0 21.8
10. 2606:a000:0:4::f:2c9 82.4% 18 20.1 32.2 16.9 59.5 23.7
11. 2606:a000:0:4::f:2c8 0.0% 18 25.6 26.5 13.7 114.7 22.5
12. ???
13. 2606:a000:0:4::f:2c8 0.0% 18 24.1 27.0 16.4 73.4 16.7
14. 2606:a000:0:4::f:2c9 94.1% 18 17.5 17.5 17.5 17.5 0.0
15. 2606:a000:0:4::f:2c8 0.0% 18 23.6 27.5 17.7 91.8 16.4
16. ???
17. 2606:a000:0:4::f:2c8 5.6% 18 22.1 21.9 14.4 35.7 5.5
18. ???
19. 2606:a000:0:4::f:2c8 0.0% 17 23.7 23.9 14.8 39.8 6.3
20. ???
21. 2606:a000:0:4::f:2c8 0.0% 16 22.4 26.6 16.7 65.1 12.6
22. ???
23. 2606:a000:0:4::f:2c8 0.0% 15 18.7 22.3 15.4 30.7 4.5
24. ???

 

7 REPLIES
Expert

Re: Potential route loop TWC residentail

where are you?

what modem? owned or leased?

 

Rookie

Re: Potential route loop TWC residentail

I'm in South Eastern NC using an Arris SB6190 that I own.

Seasoned Contributor

Re: Potential route loop TWC residentail

Did this get resolved? I haven't seen any substantive IPv6 issues I could blame on TWC for months.

Rookie

Re: Potential route loop TWC residentail

No. It's still an issue, but only for certain routes. For instance I see the loop when routing to google.com, but not facebook.com IPv6. It is also effecting routes to a VPS provider I use in Atlanta. 

To google.com: 

Host                                                                                                                   Loss%   Snt   Last   Avg  Best  Wrst StDev
 1. 2606:a000:<removed>::                                                                                                0.0%    89    0.2   0.3   0.2   0.7   0.0
 2. ???
 3. 2606:a000:0:4::8:23b6                                                                                                1.1%    89   15.5  19.7   9.5  81.9   8.1
 4. 2606:a000:0:4::6:10                                                                                                 21.6%    89   16.0  17.3  12.4  25.3   2.8
 5. 2606:a000:0:4::6:ab                                                                                                  0.0%    89   20.6  24.3  13.0  98.4  11.6
 6. ???
 7. 2606:a000:0:4::f:2c8                                                                                                 2.2%    89   21.0  23.3  13.4 102.6  10.0
 8. ???
 9. 2606:a000:0:4::f:2c8                                                                                                 0.0%    89   27.4  24.0  13.4  96.9  10.0
10. 2606:a000:0:4::f:2c9                                                                                                15.7%    89   13.3  18.7  12.2  91.3   9.9
11. 2606:a000:0:4::f:2c8                                                                                                 1.1%    89   19.1  24.3  14.3 108.5  13.3
12. 2606:a000:0:4::f:2c9                                                                                                 9.0%    89   12.7  17.5  12.0  95.6   9.4
13. 2606:a000:0:4::f:2c8                                                                                                 1.1%    89   15.6  24.3  12.9 102.7  13.0
14. 2606:a000:0:4::f:2c9                                                                                                13.6%    89   21.1  17.8  12.7  55.2   5.2
15. 2606:a000:0:4::f:2c8                                                                                                 0.0%    88   20.4  23.8  13.4  96.9  10.7
16. ???
17. 2606:a000:0:4::f:2c8                                                                                                 0.0%    87   16.9  23.6  13.2  94.3  10.4
18. ???
19. 2606:a000:0:4::f:2c8                                                                                                 1.2%    86   21.0  23.1  13.1  71.2   8.5
20. ???
21. 2606:a000:0:4::f:2c8                                                                                                 0.0%    82   25.6  24.4  14.0  92.9  11.9
22. ???

To facebook.com:

 Host                                                                                                                   Loss%   Snt   Last   Avg  Best  Wrst StDev
 1. 2606:a000:<removed>::                                                                                                0.0%     7    0.2   0.3   0.2   0.4   0.0
 2. ???
 3. 2606:a000:0:4::8:23b6                                                                                                0.0%     7   11.3  18.0  11.3  33.4   7.1
 4. 2606:a000:0:4::6:10                                                                                                  0.0%     7   20.7  16.8  14.1  20.7   2.7
 5. 2606:a000:0:4::5a                                                                                                    0.0%     7   24.2  26.7  22.5  32.6   3.4
 6. 2001:1998:0:8::16                                                                                                    0.0%     6   35.8  33.2  30.1  37.9   2.9
 7. 2001:1998:0:4::3ef                                                                                                   0.0%     6   31.6  32.8  30.2  35.9   2.4
 8. 2001:1998:0:4::3f3                                                                                                   0.0%     6   57.9  56.5  52.1  61.6   3.8
 9. 2001:1998:0:4::ec                                                                                                    0.0%     6   54.7  53.1  48.6  55.9   3.0
10. 2001:1998:0:8::61d                                                                                                   0.0%     6   84.8  58.2  48.9  84.8  13.2
11. 2620:0:1cff:dead:beef::16e4                                                                                          0.0%     6   58.0  63.7  52.7 102.1  18.9
12. 2620:0:1cff:dead:beef::1889                                                                                          0.0%     6   53.8  55.2  52.9  62.5   3.6
13. 2a03:2880:f00b:ffff::57                                                                                              0.0%     6   54.5  54.0  48.1  60.7   4.0
14. 2a03:2880:f10b:83:face:b00c:0:25de                                                                                   0.0%     6   50.1  51.0  49.1  54.6   1.8
Seasoned Contributor

Re: Potential route loop TWC residentail


w1ngnutt wrote:

No. It's still an issue, but only for certain routes. For instance I see the loop when routing to google.com, but not facebook.com IPv6. It is also effecting routes to a VPS provider I use in Atlanta. 

To google.com: 

Host                                                                                                                   Loss%   Snt   Last   Avg  Best  Wrst StDev

19. 2606:a000:0:4::f:2c8                                                                                                 1.2%    86   21.0  23.1  13.1  71.2   8.5
20. ???
21. 2606:a000:0:4::f:2c8                                                                                                 0.0%    82   25.6  24.4  14.0  92.9  11.9
22. ???

To facebook.com:

 Host                                                                                                                   Loss%   Snt   Last   Avg  Best  Wrst StDev

14. 2a03:2880:f10b:83:face:b00c:0:25de                                                                                   0.0%     6   50.1  51.0  49.1  54.6   1.8

 This looks like a regional routing issue.  I can reach those sites and I can reach your regional routers.

12. cpe-2606-A000-0-4-0-0-0-59.dyn6.twc.com                                                    0.0%     6   30.2  30.3  30.1  30.5   0.0
13. cpe-2606-A000-0-4-0-0-0-5F.dyn6.twc.com                                                    0.0%     6   35.4  35.4  35.2  35.8   0.0
14. cpe-2606-A000-0-4-0-0-0-5A.dyn6.twc.com                                                    0.0%     6   35.4  36.5  35.3  38.6   1.4

If they're still doing direct support I'd suggest opening a ticket with an  @Twc member.

Rookie

Re: Potential route loop TWC residentail

I opened a ticket via customer support a week ago. It wasn't clear that the tech I spoke with understood the issue and wouldn't provide a way for me to share traceroute info. Either way they were very polite and promised that a ticket would be created and forwardd to the proper team. However the issue still hasn't been fixed. It's been going on for over a month. Does anyone have a suggestion for an alternative mechanism to open a ticket?

Newcomer

Re: Potential route loop TWC residentail

TWC Eastern North Carolina Residential Customer

 It appears as if traffic is no longer looping between :2c8 and :2c9. It is now just dying at :2c8.

 

Youtube

Tracing route to youtube-ui.l.google.com [2607:f8b0:4002:802::200e]
over a maximum of 30 hops:

  1    <1 ms    <1 ms    <1 ms  cpe-2606-A000 [2606:a000]
  2     *        *        *     Request timed out.
  3    12 ms    21 ms    22 ms  cpe-2606-A000-0-4-0-0-E-6116.dyn6.twc.com [2606:a000:0:4::e:6116
  4    12 ms    17 ms    12 ms  cpe-2606-A000-0-4-0-0-6-64.dyn6.twc.com [2606:a000:0:4::6:64]
  5    13 ms    21 ms    19 ms  cpe-2606-A000-0-4-0-0-6-AB.dyn6.twc.com [2606:a000:0:4::6:ab]
  6     *        *        *     Request timed out.
  7    19 ms    22 ms    19 ms  cpe-2606-A000-0-4-0-0-F-2C8.dyn6.twc.com [2606:a000:0:4::f:2c8]
  8     *        *        *     Request timed out.
  9    23 ms    17 ms    23 ms  cpe-2606-A000-0-4-0-0-F-2C8.dyn6.twc.com [2606:a000:0:4::f:2c8]
 10     *        *        *     Request timed out.
 11    16 ms    21 ms    21 ms  cpe-2606-A000-0-4-0-0-F-2C8.dyn6.twc.com [2606:a000:0:4::f:2c8]
 12     *        *        *     Request timed out.
 13    16 ms    22 ms    20 ms  cpe-2606-A000-0-4-0-0-F-2C8.dyn6.twc.com [2606:a000:0:4::f:2c8]
 14     *        *        *     Request timed out.
 15    19 ms    21 ms   102 ms  cpe-2606-A000-0-4-0-0-F-2C8.dyn6.twc.com [2606:a000:0:4::f:2c8]
 16     *        *        *     Request timed out.
 17    21 ms   100 ms    16 ms  cpe-2606-A000-0-4-0-0-F-2C8.dyn6.twc.com [2606:a000:0:4::f:2c8]
 18     *        *        *     Request timed out.
 19    25 ms    21 ms    23 ms  cpe-2606-A000-0-4-0-0-F-2C8.dyn6.twc.com [2606:a000:0:4::f:2c8]
 20     *        *        *     Request timed out.
 21    18 ms    20 ms    14 ms  cpe-2606-A000-0-4-0-0-F-2C8.dyn6.twc.com [2606:a000:0:4::f:2c8]
 22     *        *        *     Request timed out.
 23    20 ms    22 ms    22 ms  cpe-2606-A000-0-4-0-0-F-2C8.dyn6.twc.com [2606:a000:0:4::f:2c8]
 24     *        *        *     Request timed out.
 25    19 ms    24 ms    21 ms  cpe-2606-A000-0-4-0-0-F-2C8.dyn6.twc.com [2606:a000:0:4::f:2c8]
 26     *        *        *     Request timed out.
 27    28 ms    20 ms    17 ms  cpe-2606-A000-0-4-0-0-F-2C8.dyn6.twc.com [2606:a000:0:4::f:2c8]
 28     *        *        *     Request timed out.
 29    33 ms    23 ms    20 ms  cpe-2606-A000-0-4-0-0-F-2C8.dyn6.twc.com [2606:a000:0:4::f:2c8]
 30     *        *        *     Request timed out.

 

Google

Tracing route to www.google.com [2607:f8b0:4002:c06::68]
over a maximum of 30 hops:

  1    <1 ms    <1 ms    <1 ms  cpe-2606-A000 [2606:a000]
  2     *        *        *     Request timed out.
  3    15 ms    21 ms    21 ms  cpe-2606-A000-0-4-0-0-8-1B26.dyn6.twc.com [2606:a000:0:4::8:1b26]
  4    20 ms    17 ms    17 ms  cpe-2606-A000-0-4-0-0-6-62.dyn6.twc.com [2606:a000:0:4::6:62]
  5    18 ms    21 ms    21 ms  cpe-2606-A000-0-4-0-0-6-A9.dyn6.twc.com [2606:a000:0:4::6:a9]
  6    18 ms    12 ms    18 ms  cpe-2606-A000-0-4-0-0-F-2C7.dyn6.twc.com [2606:a000:0:4::f:2c7]
  7    25 ms    21 ms    17 ms  cpe-2606-A000-0-4-0-0-F-2C8.dyn6.twc.com [2606:a000:0:4::f:2c8]
  8     *        *        *     Request timed out.
  9    21 ms    15 ms    21 ms  cpe-2606-A000-0-4-0-0-F-2C8.dyn6.twc.com [2606:a000:0:4::f:2c8]
 10     *        *        *     Request timed out.
 11    18 ms    22 ms    22 ms  cpe-2606-A000-0-4-0-0-F-2C8.dyn6.twc.com [2606:a000:0:4::f:2c8]
 12     *        *        *     Request timed out.
 13    22 ms    22 ms    22 ms  cpe-2606-A000-0-4-0-0-F-2C8.dyn6.twc.com [2606:a000:0:4::f:2c8]
 14     *        *        *     Request timed out.
 15    18 ms    21 ms    19 ms  cpe-2606-A000-0-4-0-0-F-2C8.dyn6.twc.com [2606:a000:0:4::f:2c8]
 16     *        *        *     Request timed out.
 17    23 ms    33 ms    19 ms  cpe-2606-A000-0-4-0-0-F-2C8.dyn6.twc.com [2606:a000:0:4::f:2c8]
 18     *        *        *     Request timed out.
 19    14 ms    22 ms    24 ms  cpe-2606-A000-0-4-0-0-F-2C8.dyn6.twc.com [2606:a000:0:4::f:2c8]
 20     *        *        *     Request timed out.
 21    24 ms    21 ms    24 ms  cpe-2606-A000-0-4-0-0-F-2C8.dyn6.twc.com [2606:a000:0:4::f:2c8]
 22     *        *        *     Request timed out.
 23    19 ms    27 ms    21 ms  cpe-2606-A000-0-4-0-0-F-2C8.dyn6.twc.com [2606:a000:0:4::f:2c8]
 24     *        *        *     Request timed out.
 25    27 ms    21 ms    21 ms  cpe-2606-A000-0-4-0-0-F-2C8.dyn6.twc.com [2606:a000:0:4::f:2c8]
 26     *        *        *     Request timed out.
 27    18 ms    21 ms    31 ms  cpe-2606-A000-0-4-0-0-F-2C8.dyn6.twc.com [2606:a000:0:4::f:2c8]
 28     *        *        *     Request timed out.
 29    20 ms    19 ms    22 ms  cpe-2606-A000-0-4-0-0-F-2C8.dyn6.twc.com [2606:a000:0:4::f:2c8]
 30     *        *        *     Request timed out.