

I’ve re-read the docs around VirtualBox bridging, and the only thing that I think could possibly cause this (though it shouldn’t since ping is a direct address to a specific IP/mac) is to enable Promiscuous mode (as cappucino mentioned).
This shouldn’t fix it in my opinion, but it may, since ICMP could be considered undirected traffic (I don’t, but I didn’t code VirtualBox).
I’ve sometimes found using trace instead of ping can sometimes work where pings would be blocked, plus trace shows exactly where it dies along the path.


Why would I?
I use a mesh vpn to manage my servers otherwise, what’s the difference?
Hell I RDP to them all the time (or SSH) - if anything it’s providing another layer of encryption.