Not able to access the IIS website outside the VM.

Hi ,

I have created  demo website in IIS and in binding section i have given hostname dev-grt-api.net and port i have given as 80 default port number. 

But i have access the page inside VM but i am not able to access the same page outside network . 

I have added DNS hostname in my etc/host file. but still it is not working t o outside 

Any help please