Re: Short-circuited traceroutes on FIOS

[Nimrod Levy <nimrodl () gmail com>]

I'm in the same region as Chris and I still can't make it fail. I wonder if
it's because I have static addressing?

On Tue, Dec 10, 2019 at 11:59 PM Christopher Morrow <morrowc.lists () gmail com>
wrote:

> On Tue, Dec 10, 2019 at 11:44 PM Lee <ler762 () gmail com> wrote:
> > It's protocol specific.  Windows tracert uses icmp instead of udp.
> > On a linux box try
> >   ping -t 2 205.132.109.90
> >
> > You should get a time to live exceeded but the Verizon router gives
> > you an echo reply instead.
>
> that's hilariously bad :( I think this is the OLT really that's doing
> this...
> $ ping -t 3 205.132.109.90
> PING 205.132.109.90 (205.132.109.90) 56(84) bytes of data.
> From 130.81.32.236 icmp_seq=1 Time to live exceeded
>
> $ ping -t 1 205.132.109.90
> PING 205.132.109.90 (205.132.109.90) 56(84) bytes of data.
> From 192.168.100.1 icmp_seq=1 Time to live exceeded
>
> $ ping -t 2 205.132.109.90
> PING 205.132.109.90 (205.132.109.90) 56(84) bytes of data.
> 64 bytes from 205.132.109.90: icmp_seq=1 ttl=254 time=3.38 ms
>
> An outbound traceroute has:
>  1  _gateway (192.168.100.1)  2.537 ms  2.587 ms  2.703 ms
>  2  * * *
>  3  B3320.WASHDC-LCR-21.verizon-gni.net (130.81.32.236)  6.638 ms
> B3320.WASHDC-LCR-22.verizon-gni.net (130.81.32.238)  6.223 ms  6.414
> ms
> ...
>
> and inbound that hop 2 is:
>  6  HundredGigE2-4-0-3.WASHDC-LCR-22.verizon-gni.NET (140.222.238.55)
> 5.504 ms HundredGigE2-6-0-3.WASHDC-LCR-21.verizon-gni.NET
> (140.222.234.53)  9.261 ms  9.266 ms
>  7  ae203-0.WASHDC-VFTTP-320.verizon-gni.net ()  7.955 ms  3.026 ms
> ae204-0.WASHDC-VFTTP-320.verizon-gni.net (130.81.32.239)  2.347 ms
>
> oh well, just wonky gpon again?