If you're reading this, you should really select a better VPN solution...  However in my case I needed to keep the status quo.  The customers SonicWall died while being moved during a big cutover, in a pinch I replaced it with a Juniper NS 5GT.  I recreated the configuration on the SonicWall, and everything worked great except inbound PPTP connections to their Windows PPTP server sitting behind the Juniper Netscreen.  I discovered that Juniper blocks GRE connections which are 'port-less' but Read more [...]