Enhancing Broadband

Firmware Release R4.0 / R4.2

Overview

When trying to run a PPtP VPN from the LAN side of a ST510, pinholes, or port forwards, need to be created.  This enables the incoming data for VPN to pass through the firewall and terminate on the computer running the VPN client/server application.

Problem

After setting up an PPtP VPN, client computers cannot connect.

Solution

We will need to create port forwards through the router’s firewall.  This document will guide you through setting up NAPT entries in the router to forward the PPtP packets to the PPtP client/server.

To do this,

1. Browse to the router and go into the ‘advanced’ menu and select NAPT

2. Click ‘new’ to create a new entry

3. Fill in the appropriate details, with the ‘Inside IP’ as the computer in the LAN you want the PPTP to be forwarded to and the port as ‘1723’

4. Click the ‘Apply’ button

5. Click ‘Save All’ to save the changes

6. Open a command prompt by clicking ‘start’ selecting ‘Run’ and type ‘command’ into the ‘open:’ box.  Then click ‘OK’

7. Type ‘telnet {The IP address of your router}’ e.g. telnet 10.0.0.138

8. Enter your router’s security username and password.

9. At the prompt, type ‘nat’.

10. type ‘create’

11. Fill out the details as below:

• Protocol = 47

• Inside IP = as the computer’s IP address in the LAN you want the VPN to be forwarded to.

• Inside addr = {blank}

• Outside addr = 0

• Outside port = {blank}

• Foreign addr = {blank}

• Foreign port = {blank}

12. type ‘saveall’

13. type ‘exit’

Your VPN packets will now be forward to the IP address you specified in steps 3 and 11.
 

Copyright of Connectplay Ltd.