Failed to ping vm ip address from another device (android phone) under same network

Question

i have network issue from using vm.

This is ifconfig info of vm ubuntu 16.04.

This is ipconfig info of my host machine.

And this is the network settings of vm.

• I able to ping vm ip addr from host machine.
• I able to ping phone ip addr from vm.
• I unable to ping vm ip addr from phone under same network.

Im bad in networking. Any of you have good clue can help me solve this issue?

Appreciate your help & Thanks in advance.

Answer 1

NAT has four different types, and it always works as a firewall. That is why we need UDP traversal and hole-punch sometime. If you want other devices like host and phone build a connection to vm, you need firstly connect from vm to thoses deivces to build a "hole" as a path.