This document demonstrates how to set up PPTP VPN backup tunnel between two Vigor3900s. In this scenario, Vigor3900 in Branch Office has two WAN connections, it will dial out PPTP tunnel through WAN1 to Headquarter, and will dial out through WAN2 if WAN1 goes down.
1. Go to User Management >> User Profile, click Add to add a new profile:
a. Enter Username and Enable this profile
b. Enter Password
c. Enter 0 for Idle Timeout to avoid VPN disconnecting by Idle Timeout.
d. Select the LAN interface as DHCP from
e. Select Enable for PPTP Dial-in
f. Click Apply to save the profile.
2. Go to VPN and Remote Access >> VPN Profile >> PPTP Dial-In click Add to add a new profile:
a. Enter Profile name and Enable this profile
b. Select the PPTP profile created for the Branch office to dial in as PPTP User Name
c. Enter Local IP / Subnet Mask as the LAN network of Vigor3900 in Headquarter
d. Click Add in Remote IP / Subnet Mask and enter the LAN network of Vigor3900 in Branch Office
3. Go to VPN and Remote Access >> VPN Profile >> PPTP Dial-Out click Add to add a new profile:
b. Select Enable for Always On
c. Select wan1 for as Dial-Out Through
d. Select wan2 for as Failover to
e. Enter PPTP User Name and PPTP Password for creating PPTP VPN
f. Enter Local IP / Subnet Mask as the LAN network of Vigor3900 in Branch Office
g. Click Add in Remote IP / Subnet Mask and enter the LAN network of Vigor3900 in Headquarter
h. Click Apply to save the profile.
4. After finishing above configurations, PPTP VPN between the Vigor3900s is up. We may go to VPN and Remote Access >> Connection Management page to check the status.
5. When WAN1 of Vigor3900 in the branch office is goes down, Vigor3900 will dial out the PPTP tunnel through its WAN2 interface to the Vigor3900 in the headquarter.
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