Re: Checksum at IP layer - is it even needed ?

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On Mon, Dec 14, 2015 at 4:50 PM, Alexey Eromenko <al4321@xxxxxxxxx> wrote:
>>> Just moving to TCP/IP to CRC32 will *not* solve the issue of
>>> middleboxes mangling our data.
>>>
>>
>> isn't the solution to all of this to just use TLS ? (or DTLS for udp)
>>
>
> TLS/SSL is one solution; But there needs to be a solution for
> unencrypted traffic also.

sure: "Move to encrypted traffic"

providing any real 'security' (or even 'people did not muck with my
packet') without real crypto is going to send the wrong message.

> TCP is supposed to guarantee end-to-end reliability, but sometimes it
> doesn't. (and with 2^16 checksums, at modern 1 Gig home links, it
> really can't...)

it SEEMS to work just fine... right? or did I miss the general up roar
from users who can't access internet things?

I suppose: "Why are we trying to solve this in tcp/udp? why not solve
this at the application layer with TLS?"




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