I have configured a Linksys WRT600N to connect using PPTP to my company’s VPN server in the past as noted in this previous article. I have since swapped out the Linksys WRT600N with a Linksys WRT54GS because I wanted to replace the antennas with larger antennas to work on getting better wireless coverage in my workshop in the basement and with the primary wireless router being located on the second floor of my house I needed to do numerous things to squeeze as much signal as possible. I also noticed numerous other issues with the WRT600N including the router locking up on a regular basis as well as dropping connections.
Its very easy to move your work PPTP VPN from your Windows XP computer to a wireless router running the dd-wrt firmware. DD-WRT firmware runs on most wired and wireless routers on the market today including the ever popular Linksys wrt54g.
Once your router has the dd-wrt firmware installed make note if the configuration settings you use for your PPTP VPN including username, password, VPN server IP, remote IP subnet mask, and remote IP subnet.
MPPE stands for Microsoft Point to Point Encryption. MPPE is used to encrypt data traveling over a PPTP, or Point to Point Tunneling Protocol, connection.
When setting up a PPTP connection using DD-WRT firmware on your router there is a blank field to configure MPPE Encryption options in the VPN/PPTP setup. By default the text “mppe required” is typed into this field. You can add a couple other options which include no40, no56, and stateful or stateless. Descriptions of these options are listed below.