Short-circuited traceroutes on FIOS

Wed Dec 11 04:44:45 UTC 2019

On 12/10/19, Christopher Morrow <morrowc.lists at gmail.com> wrote:
> On Tue, Dec 10, 2019 at 5:36 PM Nimrod Levy <nimrodl at gmail.com> wrote:
>>
>> Is that unique to the FiOS gateway device? I don't use their router and my
>> traces go right out.
>>
>
> I also don't use their device  and:
> $ traceroute 205.132.109.90
> traceroute to 205.132.109.90 (205.132.109.90), 30 hops max, 60 byte packets
>  1  _gateway (192.168.100.1)  3.085 ms  2.990 ms  2.795 ms
> ....
> 15  * 12.250.138.90 (12.250.138.90)  65.970 ms *^C
>
> -chris
> (perhaps this is location specific? I'm in the ashburn-ish-area-ish)

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.

Regards,
Lee

>> On Tue, Dec 10, 2019 at 3:08 PM Joe Maimon <jmaimon at jmaimon.com> wrote:
>>>
>>> Apparently Verizon FIOS is a red herring, terminating ICMP traceroutes
>>> right on their gateways.
>>>
>>> More internet breakage. Thanks for the information to all who responded.
>>>
>>> Random control test.
>>>
>>> C:\Users\Home>tracert -d 1.4.5.6
>>>
>>> Tracing route to 1.4.5.6 over a maximum of 30 hops
>>>
>>>    1    15 ms     5 ms    <1 ms  172.18.24.1
>>>    2     3 ms    23 ms    24 ms  192.168.2.33
>>>    3     3 ms     6 ms     3 ms  1.4.5.6
>>>
>>> Trace complete.
>>>
>>>
>>> Joe
>>>
>>> Joe Maimon wrote:
>>> > Anyone have an idea why there are some destinations that on
>>> > residential verizon fios here in NY area terminate right on first
>>> > external hop?
>>> >
>>> > There seems to be a CDN common denominator here. On other networks
>>> > with more typical BGP paths and traceroutes, users are reporting
>>> > issues accessing these sites.
>>> >
>>> > C:\Users\Home>tracert www.usfoods.com
>>> >
>>> > Tracing route to statics.usfoods.com [205.132.109.90]
>>> > over a maximum of 30 hops:
>>> >
>>> >   1     3 ms    <1 ms    <1 ms  172.18.24.1
>>> >   2     4 ms     3 ms     3 ms  192.168.2.33
>>> >   3    17 ms     6 ms     3 ms  statics.usfoods.com [205.132.109.90]
>>> >
>>> > Trace complete.
>>> >
>>> > C:\Users\Home>tracert atworkhp.americanexpress.com
>>> >
>>> > Tracing route to atworkhp.americanexpress.com.akadns.net
>>> > [139.71.19.87]
>>> > over a maximum of 30 hops:
>>> >
>>> >   1     2 ms    <1 ms    <1 ms  172.18.24.1
>>> >   2     3 ms     4 ms    23 ms  192.168.2.33
>>> >   3    21 ms    11 ms     5 ms atworkhomepage2.americanexpress.com
>>> > [139.71.19.87]
>>> >
>>> > Trace complete.
>>> >
>>> > C:\Users\Home>tracert portal.discover.com
>>> >
>>> > Tracing route to e14577.x.akamaiedge.net [23.51.172.254]
>>> > over a maximum of 30 hops:
>>> >
>>> >   1     3 ms     1 ms    18 ms  172.18.24.1
>>> >   2    21 ms     7 ms     6 ms  192.168.2.33
>>> >   3     4 ms     2 ms     2 ms
>>> > a23-51-172-254.deploy.static.akamaitechnologies.com [23.51.172.254]
>>> >
>>> > Trace complete.
>>> >
>>> >
>>> >
>>>
>