Port Forwarding and Allow on Firewall

Needed some help to understand the "Allow on firewall". I want to setup a port forward of 445 to device 192.168.2.4. I went to the device, ports, add port forwarding.

Selected TCP, put 445 for external port, 445 for internal port. Now this is where i am confused. I have seen posts that say do not enable "Allow on Firewall". However when I dont enable that, the port remains closed externally when I use a port checker tool. The port only shows open when I enable this option.

Can you clarify what this option is for and when would I use it? Seems like I need this on for the port to be open. I am working with the other device company and they are saying the port is not open which is why the device is having problems. I had this not selected before.

Firewalla

July 20, 2021 16:44

This article should answer your question https://help.firewalla.com/hc/en-us/articles/1500009502622

Nishal Patel

July 20, 2021 16:52
Edited

Thank you. So unless I want to limit the access to a certain region or IP or something, I would leave "Allow on Firewall" turned on to allow it to be wide open. The device I have needs incoming connections from all over the world since it a peer to peer network type device.

July 20, 2021 17:11

Yes, your statement is correct. By default, most people want the behavior of allowing anything to come in. The article I've linked is simply an optimization for those who require extra filtering.

Port Forwarding and Allow on Firewall

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