Configuring IPsec LAN-to-LAN VPN Tunnel between Vigor 2860 and Vigor 3900 Routers using Aggressive Mode – DrayTek FAQ
DrayTek to pfSense IPSEC VPN | How to set up DrayTek VPN connection to pfSense - YouTube
How to set up VPN on a DrayTek Vigor Router | Perfect Privacy
DrayTek Corp. on Twitter: "The Smart VPN Client is a free VPN client software for users to set up VPN connections with no sweat. It supports PPTP, L2TP, L2TP/IPSec, IPsec XAuth, IKEv2,
IPsec tunnel (LAN to LAN) between FG and Draytek - Fortinet Community