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Complete novice with this topic - struggled to grasp an understanding.

Two devices - Device A, Device B(Laptop)

Device A - IP Address 192.169.0.120
Device B - IP address 192.169.0.121

Device B(Laptop) is connected to WiFi, and to Device A through Ethernet cable.

I have an embedded app in Device A, which i access though web browser on Device B(Laptop), on Device A's IP Address.

Is it possible to make this IP address public - for instance my mobile to pick up Device A's IP address?

I've looked into VPN's (hamachi) and port forwarding. is this the right way to go?

image of example setup

LHS
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  • Port forwarding would have to be done in the router. So you wouldn't need the laptop if you can connect Device A directly to the local network (router). But even then there can be obstacles: If your provider gives you a DualStack you're out of luck because even your router wouldn't have an exclusive public IPv4. You'd have to resort to IPv6 then. – Fildor Feb 03 '17 at 12:13

2 Answers2

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You can't connect from outside the network using your local ip (192.168.0.120). Check out this topic if you want to know how to grab your external ip:

Getting the 'external' IP address in Java

Community
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DGK
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You can use ngrok to obtain the public ip address. This will basically expose your machine as public although it is in private network.

reference : https://ngrok.com/

Rajat Chandak
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