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Re: Blocking packets from suspicious ports

Carsten Bormann <cabo@tzi.org> Wed, 04 May 2022 10:42 UTC

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Subject: Re: Blocking packets from suspicious ports
From: Carsten Bormann <cabo@tzi.org>
In-Reply-To: <20220504094135.GE26036@1wt.eu>
Date: Wed, 04 May 2022 12:41:54 +0200
Cc: Christian Huitema <huitema@huitema.net>, Paul Vixie <paul=40redbarn.org@dmarc.ietf.org>, IETF QUIC WG <quic@ietf.org>
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To: Willy Tarreau <w@1wt.eu>
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On 2022-05-04, at 11:41, Willy Tarreau <w@1wt.eu> wrote:
> 
> 32768..61000 (the default range on Linux).

Right.

So I’m fully aware that this is no longer as clean-cut as it used to be.

My question was less about the situation that we have, but whether it would make sense to move forward to a more common, more clear-cut situation.

Transition of course is left as an exercise to the reader, but as features like this would be used for losing packets under attack only, there is a lot more leeway than for other global changes of the network.

Grüße, Carsten

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