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VPN is an establishment of a private secured network over an unsecured network. SPA232D ATA does not support VPN technology natively, it will only allow the VPN traffic that initiated from VPN client to pass through to Internet, then reach the remote VPN gateway. The term comes from allowing the VPN traffic to “passthrough” the router. SPA232D supports three VPN protocols namely IPsec, PPTP, and L2TP. This article explains how to enable the VPN passthrough feature for different protocols.
• SPA232D ATA
Enable VPN Passthrough
Step 1. Use the web configuration utility to click Network Setup in the menu bar.
Step 2. At the navigation tree, choose > Advanced Settings > VPN Passthrough. The VPN Passthrough page opens:
Step 3. To enable Internet Protocol security (IPsec) protocol based VPN behind the ATA, click the Enabled radio button at the IPsec Passthrough field
Step 4. To enable Point to Point Tunneling Protocol (PPTP) based VPN behind the ATA, click the Enabled radio button at the PPTP Passthrough field.
Step 5. To enable Layer 2 Tunneling Protocol (L2TP) based VPN behind the ATA, click the Enabled radio button at the L2TP passthrough field.
Step 6. Click Submit to save changes, or Cancel to discard them.