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Spectrum (Charter) Fragmented UDP

Subject: Spectrum (Charter) Fragmented UDP
From: tarko at lanparty.ee (Tarko Tikan)
Date: Wed, 2 Oct 2019 16:14:04 +0300
In-reply-to: <CAAeewD9uwzRU7qmkHW=zwtoiPNk2jUM22FstJCZHUuW09-2Ovw@mail.gmail.com>
References: <DB6PR0301MB2533D141DA01181C39DF35FA899C0@DB6PR0301MB2533.eurprd03.prod.outlook.com> <CAAeewD9uwzRU7qmkHW=zwtoiPNk2jUM22FstJCZHUuW09-2Ovw@mail.gmail.com>

hey,

> I don't know anything specific to this case, but you'd serve your best
> interest to send small enough packets that do not need fragmentation,
> particularly in the backbone.

In this case the SIP invite is already sent fragmented from the source 
and no fragmentation is required in transit. Someone probably thought 
"we see a lot of DDOSes with UDP fragments, better drop them altogether".

-- 
tarko

References:
- Spectrum (Charter) Fragmented UDP
  - From: phil.lavin at cloudcall.com (Phil Lavin)
- Spectrum (Charter) Fragmented UDP
  - From: saku at ytti.fi (Saku Ytti)

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