[44net] DOS ?

Is anyone experiencing a flood of pings from 44.4.92.50 (ke6i.ampr.org). I'm seeing pings every second. The pings are flowing from the amprnet server via encap. root@linux:/jnos3/# tcpdump -n -i sl0 src 44.4.28.50 tcpdump: verbose output suppressed, use -v or -vv for full protocol decode listening on sl0, link-type RAW (Raw IP), capture size 262144 bytes 03:01:43.969910 IP 44.4.28.50 > 44.17.0.128: ICMP echo request, id 27171, seq 25514, length 64 03:01:44.972033 IP 44.4.28.50 > 44.17.0.128: ICMP echo request, id 27171, seq 25515, length 64 03:01:45.975101 IP 44.4.28.50 > 44.17.0.128: ICMP echo request, id 27171, seq 25516, length 64 03:01:46.975808 IP 44.4.28.50 > 44.17.0.128: ICMP echo request, id 27171, seq 25517, length 64 03:01:47.976128 IP 44.4.28.50 > 44.17.0.128: ICMP echo request, id 27171, seq 25518, length 64 73 Jack AA6HF (44.17.0.128)