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Traceroute only making 2 Hops, incorrect ping data

Traceroute only making 2 Hops, incorrect ping data

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Contributor nat2r
Contributor
Posts: 2
Registered: ‎03-06-2019
Message 1 of 5
(1,137 Views)

For some reason I haven't been able to perform tracerts. I call customer support, and the first representative didn't understand what that was, so she transcribed my issue to helpdesk and they didn't quite understand the issue. I sent over screenshots and they're like "you're pinging at 1ms, thats very good, i dont see the issue." Very concerning response considering none of the examples I sent them had more than 2 hops. 

 

Regardless, I'd love to know how to fix this issue. I've talked to support twice. 

 

Additionally, there is a problematic node in Philadelphia that needs to be looked at ASAP. Is there a single person I can contact regarding more complex issues unrelated to my home?

4 REPLIES 4
Platinum Contributor III Platinum Contributor III
Platinum Contributor III
Posts: 7,346
Registered: ‎12-15-2010
Message 2 of 5
(1,099 Views)

This is a network configuration issue on Verizon's end which has been popping up in some areas. Basically, Verizon uses an MPLS backbone, but TTL Propagation isn't occurring (something tracert needs to work correctly) for ICMP traffic. If you have a Linux system or a Mac handy, these will be able to complete a traceroute correctly. You can also try using other tools like WinMTR or Pathping on Windows to see if those work.

Contributor JC-NYC
Contributor
Posts: 10
Registered: ‎04-02-2019
Message 3 of 5
(828 Views)

And Verizon tech swears this is not the case!

SMH ... this is getting pathetic.

Contributor VinceF
Contributor
Posts: 1
Registered: ‎07-07-2019
Message 4 of 5
(289 Views)

I have the same problem (in Syracuse, NY) as the OP.  Here, the (only) problem seems to be at the second hop. [Is that the optical network terminal in my basement?]  If the ping expires there, it responds with the IP of the desired destination (and the RTT is impossibly low).  But if the ping doesn't expire there, it's forwarded (with TTL intact) and the trace proceeds as desired.  I wrote a NETTRACE.EXE which allows for skipping some hops.  It uses ICMP.  Below, if I don't skip any hops, I get the behavior described previously.  If I skip 2 hops, I get satisfactory results.

v:\> nettrace syr.edu

  1     0       0       0       Fios_Quantum_Gateway.fios-router.home
  2     3       6       6       syr.edu

v:\> nettrace /s 2 syr.edu

  3     9       3       7       B3309.SYRCNY-LCR-22.verizon-gni.net
  4     *       *       *
  5     16      13      13      0.ae2.BR2.NYC4.ALTER.NET
  6     *       *       14      verizon.com.customer.alter.net
  7     27      27      27      ae-0-11.bar1.Buffalo1.Level3.net
  8     26      21      27      SYRACUSE-UN.bar1.Buffalo1.Level3.net
  9     21      28      27      core2-cst-61-49.syr.edu
 10     27      27      20      gdc-40leaf1b-061-171.syr.edu
 11     23      20      20      syr.edu

 - Vince

Platinum Contributor II Platinum Contributor II
Platinum Contributor II
Posts: 7,474
Registered: ‎11-04-2008
Message 5 of 5
(246 Views)

But are you experiencing performance issues otherwise?

If not, what's the impact of the trace issue?


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