Bug#747096: openssh-client: key negotiation hangs for mtu 1500 and default Ciphers options
Package: openssh-client
Version: 1:8.4p1-5+deb11u1
Followup-For: Bug #747096
X-Debbugs-Cc: michal.seidl@seznam.cz
Dear Maintainer,
* What led up to the situation?
Some network changes not under my control
* What exactly did you do (or not do) that was effective (or
ineffective)?
Standard connetion command ssh <user>@<remote_machine>
* What was the outcome of this action?
Hangs on key negotiation
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
* What outcome did you expect instead?
To be aske for password as ussually
I tested this situation in problematic network from this computers:
1) Fresh Debian 11 install I am reporting bug from
2) My other Ubuntu 20.04 notebook and Ubuntu 20.04 server have the same problem
3) Windows 10 putty, Rocky Linux 9 work without problem
MS
-- System Information:
Debian Release: 11.4
APT prefers stable-updates
APT policy: (500, 'stable-updates'), (500, 'stable-security'), (500, 'stable')
Architecture: amd64 (x86_64)
Kernel: Linux 5.10.0-16-amd64 (SMP w/1 CPU thread)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled
Versions of packages openssh-client depends on:
ii adduser 3.118
ii dpkg 1.20.11
ii libc6 2.31-13+deb11u3
ii libedit2 3.1-20191231-2+b1
ii libfido2-1 1.6.0-2
ii libgssapi-krb5-2 1.18.3-6+deb11u1
ii libselinux1 3.1-3
ii libssl1.1 1.1.1n-0+deb11u3
ii passwd 1:4.8.1-1
ii zlib1g 1:1.2.11.dfsg-2+deb11u1
Versions of packages openssh-client recommends:
ii xauth 1:1.1-1
Versions of packages openssh-client suggests:
pn keychain <none>
pn libpam-ssh <none>
pn monkeysphere <none>
pn ssh-askpass <none>
-- no debconf information
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