MTU to CDN's

Jared Mauch jared at
Tue Jan 9 00:54:03 UTC 2018

On Mon, Jan 08, 2018 at 05:55:55PM -0500, Dovid Bender wrote:
> Hi,
> N00b here trying to understand why certain CDN's such as Cloudfare have
> issues where my MTU is low. For instance if I am using pptp and the MTU is
> at 1300 it wont work. If I increase to 1478 it may or may not work.

	I've done some measurements over the internet in the past year or
so and 1400 byte packets with DF bit seem to make it just fine.

	- Jared

Jared Mauch  | pgp key available via finger from jared at
clue++;      |  My statements are only mine.

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