On 20 September 2015 at 11:28, Carlo Abelli <carlo.abelli@xxxxxxxxx> wrote: > On 09/20/2015 03:25 AM, Darren Tucker wrote: >> I suspect a path mtu problem. The key exchange packet is one of the >> first large ones in an SSH connection so it tends to show up such problems. >> >> Seehttp://www.snailbook.com/faq/mtu-mismatch.auto.html >> <http://www.snailbook.com/faq/mtu-mismatch.auto.html> > > Has this been changed? SSH used to work fine on my old machine. My local > mtu and server mtu are higher than required. Therefore the only thing I > could expect would be a lower mtu on the vpn. Has this changed in recent > versions. As previously I was using OSX I expect the OpenSSH version was > older. Still strange to me that it worked before and not now. I will > test tomorrow to see if connecting on the actual network solves the issue. It is common for VPNs to introduce lower MTU limits and to not correctly send ICMP code 3 type 4 packets. This isn't so much of an SSH problem as it is a misconfiguration on the network path to the destination. See https://www.ietf.org/rfc/rfc2923.txt for further examples. -- Eitan Adler _______________________________________________ openssh-unix-dev mailing list openssh-unix-dev@xxxxxxxxxxx https://lists.mindrot.org/mailman/listinfo/openssh-unix-dev
