My iPhone 6s and my laptop (Ubuntu 18.04) run on the same network (192.168.64.0) with subnet mask 20.
But when I'm trying to ping to my iPhone from my laptop (192.168.64.132/20 > 192.168.64.155/20): Host Is Unreachable
Also vice versa when I try to ping from my iPhone to my laptop.
Why does this happen?
Is there any built-in firewall in iOS that doesn't allow me to ping?
Is there any way to fix this problem?