On Wed, 20 Mar 2019 10:22:34 -0400, Pete Baldwin said:
��� It's potentially more difficult now than in the past because there are some hosting providers that are simply a few people that own VMs on some other infrastructure that they do not control or have visibility into.� The VM hosting company might be blocking your network, and so the VMs never see your traffic.�� This means you might contact Landstar, and then Landstar calls up their web person, but the web person doesn't understand this stuff.�� The web person phones his web hosting company who can't find anything wrong, because they never see your packets to begin with.�� Now the web hosting company (if you can get them to do this) needs to contact their DC company that is hosting their VMs to find out if there is a firewall or anti DDoS system etc that is sitting in front of their VMs.
Have we reached the point where it is (or should be) due diligence and a BCP to make sure your new address space is reachable on IPv6 as well, to improve your chances of being reachable even if your IPv4 space is in somebody's block list?