[Frage] VPN LAN-LAN between Fritzbox and Draytek Router

[ilex_ilex]

Hi to all

I'am looking for a guide how to setup a VPN connection for the following setup:

Site A: Fritzbox 7320 with 3G modem. WAN with private IP address from ISP
Site B: Vigor 2120. WAN with PUBLIC IP address from ISP

So Fritzbox router has to dial-in into Vigor 2120.

Any help appreciated

BR
Mikolaj