Control Panel > Security > Protection provides options to enhance network security for each network interface.
Denial-of-service (DoS) protection helps prevent malicious attacks over the Internet.
When the DiskStation acts as a router, VPN pass-through allows clients to pass through the DiskStation NAT and establish outbound or inbound VPN connections. If your internal setup includes a VPN server, please go to Control Panel > External Access > Router Configuration to set up port forwarding rules and allow the VPN server to establish VPN connections.
If your DiskStation device connects to the Internet via PPPoE, the related DoS protection or VPN pass-through rules must be configured on the corresponding PPPoE interface.
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*Only available on certain models.