No change for them because the one head-end is fed by L3, so there's no
way it can vanish from the path. :)
On 10/21/2019 1:39 PM, Biddle, Josh wrote:
Our issues have recently magically resolved (last Thursday 10/17) due
to L3 vanishing from the hop list. Our traffic now disappears into
ntt.net and we are seeing two way IPsec traffic without any issues.
Marty, did your issues resolve?
*From:* Marty Adkins <[email protected]>
*Sent:* Friday, October 18, 2019 4:01 PM
*To:* Biddle, Josh <[email protected]>; [email protected]
*Subject:* Re: [outages] VPN issues over Spectrum L3 boundaries
A customer of mine has had the same issue with a TW-connected site in
Ohio and another in PA. One VPN tunnel works fine, the other has
one-way ISAKMP traffic to the other head-end, which connects to
Level3. A traceroute shows the failing path includes 66.109.7.162.
The failing direction is from the PA/OH sites toward the L3 head end.
Full-size pings work fine. It's the UDP/500 that vanishes. I.E., it
has nothing to do with MTU.
Both started having the issue around Aug 26. Mysteriously, every week
to 10 days, the broken path will start working for a while. This is
usually shortly after midnight EDT; they go back down 1-3 hours later
and stay down. The log entries for the two sites match within seconds.
The customer's contract is with Comcast Business so it's been
difficult to get to someone clueful about this symptom in TW.
-Marty
On 10/15/2019 8:04 AM, Biddle, Josh via Outages wrote:
Found a thread in the Spectrum forums talking about the issue
finally – it was marked as resolved so I started a new one.
https://forums.timewarnercable.com/t5/Connectivity/Traffic-issues-at-66-109-7-162/m-p/164091#M53497
<https://urldefense.proofpoint.com/v2/url?u=https-3A__forums.timewarnercable.com_t5_Connectivity_Traffic-2Dissues-2Dat-2D66-2D109-2D7-2D162_m-2Dp_164091-23M53497&d=DwMD-g&c=-7HNwxqfpkdcRXCW8HB54Q&r=svX1Si7sopSBMitBL3bFwQ&m=pXHvd5iI_J5DVYGMDKBSdUZl1iyilZUvR3oyvE3BJ0E&s=_90gCNY2Ln1XdqWtMNguWIRejhsdUxoLyvgTpo-R5jM&e=>
*From:* Outages <[email protected]>
<mailto:[email protected]> *On Behalf Of *Biddle, Josh
via Outages
*Sent:* Sunday, October 13, 2019 12:00 PM
*To:* [email protected] <mailto:[email protected]>
*Subject:* [outages] VPN issues over Spectrum L3 boundaries
We have several offices over the Ohio and Pennsylvania area that
are experiencing issues passing traffic over VPN tunnels
(specifically, there is always a Spectrum >< Level 3
interconnect). It is a very strange issue. The VPN tunnel will
actually establish, and if you source your ping from inside the
internal network across the VPN tunnel to the destination, the
traffic gets there and replies, but the replies never make it back
to the original sending point.
Anyone else experiencing any similar issues like this?
Best Regards,
*Josh*
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