Recommended Default Gateway Setting for a Multihomed PPTP Server

• Microsoft Windows NT Server version 4.0

SUMMARY

This article describes a virtual private networking (VPN) solution called Point-to-Point Tunneling Protocol (PPTP), which allow clients located on the Internet to connect to a private corporate network on a Remote Access Service (RAS) or a Routing and Remote Access Service (RRAS) server that is multihomed with two network adapters.

MORE INFORMATION

In this configuration, one network adapter is attached to the private corporate network and the other is attached to an Internet service provider (ISP) network.

The default gateway must point only to the Internet Protocol (IP) address of the router located on the Internet side. This ensures that all IP traffic sent to clients located on the Internet is properly routed.

For IP traffic sent to clients located on the private corporate network, it may be necessary to add static routes or a routing protocol on a RAS or RRAS server to ensure traffic is properly routed.

REFERENCES

For additional information, please see the following articles in the Microsoft Knowledge Base:

Q169790 How to Troubleshoot Basic TCP/IP Problems in Windows NT 4.0

Q140859 TCP/IP Routing Basics for Windows NT

Additional query words:

Keywords :
Version : winnt:4.0
Platform : winnt
Issue type : kbinfo