Draytek Vigor2120n-plus User Manual page 61

Note: The following descriptions for VPN Type are based on the Route Mode
specified in LAN-to-LAN Client Mode Selection.

When you choose PPTP (None Encryption) or PPTP (Encryption), you will see the
following graphic:

When you choose IPsec, you will see the following graphic:
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Vigor2120 Series User's Guide