Under WIFI on campus network, hosts on the same network segment cannot ping, but their own hosts and virtual machines can ping

  linux, question

For example,
Background: Host: Mac OS X system, virtual machine Parallels Desktop:Kali Linux system, network bridge network, default adapter.

Their own hosts and virtual machines can ping each other, but the hosts and other hosts under the same network segment cannot ping, and the virtual machines and other hosts under the same network segment cannot ping.

Their own hosts, their own virtual machines and other hosts all belong to the same network segment with the same subnet mask and the same gateway address.

If WiFi is used, it is possible that the gateway has enabled AP isolation, which prohibits communication with devices inside the LAN.