In the Windows search box, type firewall.You have already opened these ports in your router and port forwarded them to your PC. Step 2: Windows Defender Firewall with Advanced Securityįor L2TP/IPsec, you need to open ports 500/udp, 1701/udp, and 4500/udp.

You can set the options so the screen turns off after a few minutes, but configure your computer so that it never goes to sleep. Under the System section, select Power & sleep. Right-click on the Windows Start button, and select the Settings app. Therefore configure its power plan to prevent the PC from ever going to sleep. You do not want your computer to be asleep when you try to connect from the outside world. Windows as SoftEther L2TP/IPsec Server Step 1: Windows Power Plan Consult the documentation for your particular make and model of router. The procedures for opening the firewall and configuring port forwarding vary from router to router, so detailed instructions cannot be given here. To determine your computer’s address on the LAN, open a Windows Command Prompt and issue the command ipconfig.

Configure your router to forward UDP ports 500, 1701, and 4500 from the outside world (often called the wide-area network or WAN) to your PC on the local area network or LAN.

Open your router firewall for UDP ports 500, 1701, and 4500.

You need to do a couple of things on your home router:

Configuring your iOS device as a L2TP/IPsec client.

Setting up your Windows PC as a SoftEther L2TP/IPsec server.

Therefore you connect your iOS device to the Internet through a VPN server on your home PC.

However, you do not want hotel or coffee shop employees to be able to spy on which websites you visit. While you are away, you use an iOS device (i.e., an iPhone or iPad) to connect to the Internet. The Windows client in the original article has been replaced by an iOS device. This is a modernization and adaptation of James’s article at

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