So it seems its your client that is giving you issues. Probably Key Exchange algorithms is the culprit?
Or some other misconfig.
On Tuesday, January 20, 2026 at 08:23:45 PM GMT+9, Washington Odhiambo <odhiambo@gmail.com> wrote:
On Tue, Jan 20, 2026 at 1:48 PM Crystal Kolipe <kolipe.c@exoticsilicon.com> wrote:
> On Tue, Jan 20, 2026 at 10:43:34AM +0300, Washington Odhiambo wrote:
>> On Mon, Jan 19, 2026 at 8:08???PM Crystal Kolipe <kolipe.c@exoticsilicon.com>
>> wrote:
>> > The problem is probably not with PF, but something else.
>> >
>>
>> I haven't manipulated anything at all. It's a fresh OpenBSD install.
>
> Have you checked the configuration on the host?
>
> From the information you have supplied so far, the configuration of the
> OpenBSD client seems to be correct.
>
>> Your suggested commands show that it is running and listening on all
>> interfaces for IPv4 and IPv6.
>
> OK, so it seems that:
>
> * PF is currently disabled, so this is not the source of the problem.
> * SSHd is running and listening on all interfaces.
> * Your ifconfig output looks correct.
> * Your routing table looks correct.
> * The OpenBSD vm is using 192.168.69.22
> * The host is using 192.168.69.1
> * You are able to ping the host from within the OpenBSD vm
> * You are able to ping other hosts on the internet from within the OpenBSD vm
> * Therefore ICMP traffic is correctly being routed out of and back to the
> OpenBSD vm.
> * You are assigning the IP address to the OpenBSD via DHCP, (rather than
> setting a fixed address.)
>
> If this is all correct, I would now check:
>
> * Is TCP traffic being routed out of and back to the OpenBSD vm:
>
> openbsd# ftp -o -https://www.openbsd.org/
>
> * Can you connect to an arbitrary high port that is listening on the OpenBSD vm
> from the host:
>
> openbsd# nc -l 192.168.69.22 2000
> host$ telnet 192.168.69.22 2000
>
> As PF is currently disabled, you should be able to connect to port 2000
> without any additional configuration.
>
Linux pve2 6.17.4-2-pve #1 SMP PREEMPT_DYNAMIC PMX 6.17.4-2 (2025-12-19T07:49Z) x86_64
The programs included with the Debian GNU/Linux system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.
Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
root@pve2:~# nc -l 192.168.69.22 2000
^C
root@pve2:~# ssh wash@192.168.69.22
The authenticity of host '192.168.69.22 (192.168.69.22)' can't be established.
ED25519 key fingerprint is SHA256:rCoWP6WVjHxsVo2UEYEjq4UWyVS4a2xp3LJcD9EvNw0.
This key is not known by any other names.
Are you sure you want to continue connecting (yes/no/[fingerprint])?
I can SSH to openBSD from all the other VMs.
What seems to be the problem is that I cannot SSH to it from Putty/Bitvise clients from Windows 11, but I can SSH from the Windows 11 command line :-(
Weird.
--
Best regards,
Odhiambo WASHINGTON,
Nairobi,KE
+254 7 3200 0004/+254 7 2274 3223
In an Internet failure case, the #1 suspect is a constant: DNS.
"Oh, the cruft.", egrep -v '^$|^.*#' ¯\_(ツ)_/¯ :-)
[How to ask smart questions: http://www.catb.org/~esr/faqs/smart-questions.html]
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