Windows 7 firewall blocks edge traversal(port forward from router)

port-forwardingwindows 7windows firewall

I am trying to set up a website on my windows 7 machine. I opened a 'inbound rule' in firewall to open port 8000. When I try to visit the port from another computer in my home network, it works fine.

However, I also want people outside my home network to visit my website. So I set up a port forwarding on my home router, to forward port 8000 to 8000. When I try to visit the port from outside, it does not work. I have a linux server in my home and set up the port forward, and it works fine.

So I am sure that the router is set correctly, and the real problem is in windows firewall. The fact is that local computer in my home network can visit the port while outside computer cannot. And in the inbound rule, which is set in windows firewall, I select 'Allow edge traversal' explicitly, but it still does not work.

Anyone can help me?

Thanks a lot!

Best Answer

If a user can access the website from inside the network, but an outside user cannot, it's almost always a NAT problem on the router.

But just in case, lets say it's not a router problem.

You would want to check to make sure that the scope of the Windows Firewall rule allows all IP addresses, and not just those that are within your local subnet.

Related Solutions

Port forwarding without router access how does it work

The key is the UPNP https://en.wikipedia.org/wiki/Universal_Plug_and_Play

The router must be UPNP capable, and UPNP service must enabled. If disabled, process in the question won't work.
The configuration done via UPNP commands instead router's web interface. But in both case, router gets configured, just the method different.

Now my question why does it work without configuring the router?

In this case the OS configure your router.

What is my computer doing when I set up this option in order to enable port forwarding?

OS sends UPNP messages to the router. These are network packets, if you interested in deeply, you can find official UPNP protocol descriptions.

You can imagine it as there's 2 port-forward database. One managed by router web interface (portforward, virtual servers, naming different), another managed by clients of the routers. But both stored on the router, and apply to the router rules.

Networking – How to port forward on Genexis Platinum 4410

Go to APP → Advanced NAT → VirtulaServerConfiguration. Select "Customize" if using for a custom purpose. If using for some standard application, select "Select Application".

Interface      : connection name
Protocol       : tcp or udp
SourceIpAddress: The public IP visible in the internet
StartPortNmber : from which port number it will be mapped
EndPortNumber  : till which port number it will be mapped
InternalHost   : private ip of the host system(preferably static IP)
MappingName    : just an identifier

Click "Add" to enter the details to the table. "Enable" in the table will be set as open.

Example of the data entered:

Best Answer

Related Solutions

Port forwarding without router access how does it work

Networking – How to port forward on Genexis Platinum 4410

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