Bug#1136459: openssh-server: [regression] stopped accepting connections over the WLAN

Thorsten Glaser <[email protected]> Thu, 14 May 2026 01:58:04 +0200 (CEST)

Newsgroups	gmane.linux.debian.devel.ssh
Message-ID	<535193a9-7aaf-e224-c694-9ec800ad1788__4623.31808391667$1778716886$gmane$org@b1-systems.de>

>So it seems like certain network devices default to blocking packets
>with the new default traffic class octet, which I think you=E2=80=99ll wan=
t
>to take upstream.

This is especially important as it can cause lock-out scenarios.

From=20B to A, I can do ssh -o IPQoS=3D=E2=80=A6 and get a working connecti=
on.
But in the other direction, I can do nothing, as the SSH client
and server cannot do IPQoS negotiation as even the initial handshake
(server sends its version string to the client) already uses the
problematic traffic class.

Thanks,
//Thorsten
--=20
Thorsten Glaser
Linux / Unix Developer
Tel.: +49 160 91168501
E-Mail: [email protected]

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