Issue: PPTP VPN can work through gateway to gateway, but not through LAN to LAN.

 

Typical Diagram:

pptp not working through lan to lan

 

Details:

Once the PPTP is connected, the 192.168.8.1 E-Lins router get PPTP IP 192.168.1.205 from the PPTP Server. From 192.168.8.1, it can ping through 192.168.1.254, but cannot ping through 192.168.1.250.

 

Main Cause and Solution:

Item Cause Solution
1 Configuration is wrong

Please check the PPTP configuration if correct. Refer to the manual step by step.

2 Firmware

Some windows OS is not good compatible with E-Lins router. Please try new firmware.

Firmware for H685

Firmware for H820

3 PPTP Server lost route for PPTP Client

refer router usermanual at chapter 3.3.7.2 PPTP.

In the above PPTP Server Vigor2850, we configed the static route for 192.168.8.0/24, then it solve the issue.

See the picture below.

PPTP not working through LAN to LAN

 

Notes: If there is "PPTP" selection in Network Interface, try to select it if select the "WAN2" cannot work.

You can assign the PPTP IP for PPTP Client of H685/H820/H700/H720 as below,

PPTP not working through LAN to LAN

 

 

PPTP not working through LAN to LAN