I noticed the same thing, unable to reach kk7kx.ampr.org
I am running iperf on the same ports (till my next reboot) on 44.92.21.35, which should be reachable both ways for anyone who cares to mess around.
Note: the gateway this host is behind is a residential cable modem 15/1 Mbps, nothing impressive.
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Subject: Re: [44net] Packet loss through UCSD? From: Assi Friedman <assi at kiloxray.com> Date: 07/21/2015 06:28 AM
To: AMPRNet working group <44net at hamradio.ucsd.edu>
Oops, left out the host name: kk7kx.ampr.org TCP -> port 7000 UDP -> port 7001 Thanks, Assi kk7kx/4x1kx
It does not reply at all, not even to ping. The tunnel endpoint can be pinged.