[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Short-circuited traceroutes on FIOS



On Fri, Dec 13, 2019 at 4:16 PM Javier J <javier at advancedmachines.us> wrote:
>
> Is anyone from Verizon on this list? They probably are but not allowed to comment. I would love to know if there is an official comment on why they do this.
>
> It annoyed me when they first implemented and I was trying to diagnose an issue with a client.
>
> Regarding your edge device:
> Same here, I had ubiquity gear at my GW for a while and before that PFsense.
>
> When i saw 1ms responses to a ping one day I was confused.

Well, yes, but you *did* see a 1ms ping response.
I'm sure no ISPs would intentionally configure their networks to
artificially improve their latency measurements on certain automated
tools, so I don't know why that would be a useful outcome...

W

>
>
> - J
>
> On Thu, Dec 12, 2019 at 12:51 PM Peter Beckman <beckman at angryox.com> wrote:
>>
>> On Wed, 11 Dec 2019, Javier J wrote:
>>
>> > If you have static addressing (biz account) then possibly different from
>> > what I have.
>> >
>> > In North NJ, 3 different accounts I can verify have ICMP blocked as of
>> > sometime earlier this year or late last year so have to use udp to get a
>> > real traceroute.
>> >
>> > Could not be deployed in all areas the same way.
>>
>>   I noticed this about the same time I installed Ubiquiti gear at home,
>>   December 2018.
>>
>>   Until this thread, I thought there was something wrong with my gateway
>>   router config. I could do UDP/TCP traceroutes, but ICMP kept dying.
>>
>>   Glad to know it isn't my gateway, but frustrated as hell that Verizon
>>   decided that a few customers doing less-than-ideal things was enough to
>>   cut a standard network protocol off at the knees.
>>
>> ---------------------------------------------------------------------------
>> Peter Beckman                                                  Internet Guy
>> beckman at angryox.com                                 http://www.angryox.com/
>> ---------------------------------------------------------------------------



-- 
I don't think the execution is relevant when it was obviously a bad
idea in the first place.
This is like putting rabid weasels in your pants, and later expressing
regret at having chosen those particular rabid weasels and that pair
of pants.
   ---maf