My understanding is that it's working correctly,
because the icmp reply
is sent back to 2.238.198.249 inside the tunnel and towards the
amprnet router (169.228.66.251).
Unfortunately there's something wrong in the
middle because no packets
are actually reaching 2.238.198.249
It must be something in your 2.238.198.249 system or the path to it, because
I can ping 44.134.160.1 without problem from other internet hosts.
Rob