Parse Api Push Notifications (parse.com/gcm) Urls, Ips, Protocols And/or Ports

I am using Parse API for pushing notifications in my Android app without problem. The app should work without internet in my HotSpot network. So I need to open URLs, Maybe Ports or

Solution 1:

In summary, opening these IPs/domains is not going to be sufficient.

The device accesses the GCM servers on ports 5228-5230.

Note: If your organization has a firewall that restricts the traffic to or from the Internet, you'll need to configure it to allow connectivity with GCM. The ports to open are: 5228, 5229, and 5230. GCM typically only uses 5228, but it sometimes uses 5229 and 5230. GCM doesn't provide specific IPs. It changes IPs frequently. We recommend against using ACLs but if you must use them, take a broad approach such as the method suggested in this support link.

Here is the link to the relevant GCM documentation: https://developers.google.com/cloud-messaging/http

Latest Android versions fallback on port 443 in the absence of access to these ports.