D-Link DFL-1500 [113/271] Make vpn packets pass through dfl 1500

DFL-900/1500 User Manual Chapter 12

VPN Technical Introduction

105

12.3 Make VPN packets pass through DFL-1500

Figure 12-1 Enable the Pass Through feature of DFL-1500

Sometimes there are some VPN devices existing in your network topology. As

Figure 12-1 illustrated, you are using the VPN

device A under LAN_1 to establish IPSec/PPTP/L2TP with others (ex. VPN device B, PPTP/L2TP client). And you want to place

the DFL-1500 into this topology, but you would like to remain the original VPN device to establish the VPN connections. Thus you

can make the “Pass Through” feature enabled to make sure the IPSec/PPTP/L2TP traffic will not be blocked by the DFL-1500

device.

Step 1. Enable IPSec

If we need to setup DFL-1500 between the

existed IPSec / PPTP / L2TP connections. We

need to open up the Firewall blocking port of

DFL-1500 in advance. Here we provide a simple

way. You can through enable the IPSec / PPTP

/ L2TP pass through checkbox on this page.

Then the VPN connections of IPSec / PPTP /

L2TP will pass through DFL-1500. As well as

DFL-1500 will play the middle forwarding device

role.

ADVANCED SETTINGS > VPN Settings > Pass Through

For the IPSec/PPTP/L2TP description, please refer the later individual chapter discussion.

The feature of the VPN can only be available while DFL-1500 connects to the internet via Default WAN Link.