Am Fri, 20 May 2016 15:28:35 +0200 Jan Bramkamp <cr...@rlwinm.de> schrieb:
> On 20/05/16 14:54, Vladimir Zakharov wrote: > > Hello > > > > On Fri, May 20, 2016, O. Hartmann wrote: > >> I reported earlier about broken pipes in ssh sessions to remote hosts, > >> which occur on an erratic basis. i'm investigating this problem now and > >> it seems that it is also ipfw-related, but I'm not sure. This problem > >> is present since a couple of weeks now. > > > > Maybe this could help... > > > > I've also experienced problems with broken pipes in ssh sessions some > > time ago. Setting in sysctl.conf > > > > net.inet.ip.fw.dyn_ack_lifetime=3600 > > > > fixed problem for me. I didn't experiment with the value though. So, > > possibly, changing default value (300s) to 1 hour is overkill :). > > By default the OpenSSH SSH client is configured to use TCP keepalives. > Those should produce enough packets at a short enough interval to keep > the dynamic IPFW state established. > > Does your traffic pass through libalias? YES and NO. My private setup at home/home office uses NAT/libalias (kernel NAT), but at work and department its straight forward.
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