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Subject: [Bug 209680] ipfw: when enabled, net connections time out/ssh
 results in "broken pipe"
Date: Wed, 01 Jun 2016 18:48:00 +0000
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D209680

soeren84@fastmail.net changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |soeren84@fastmail.net

--- Comment #5 from soeren84@fastmail.net ---
I believe that I'm seeing the same issue when doing backup transfers via a =
SSH
tunnel (Fssh_packet_write_wait: Connection to <IP> port 22: Broken pipe)

However I'm using PF and not ipfw. This is happening using an up-to-date
FreeBSD 10.3 (10.3-RELEASE-p4) with the default kernel.
I can't say when the issue was introduced since it is a freshly installed
machine, but I'm running the exact same SSH tunnel setup on a Linux machine
without any issues.

A workaround for me seems to be to limit the transfer speed to something way
below the link speed. At least it's better than connections breaking.

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