[COLUG] Questions about PopTop VPN configuration

[Scott Merrill]

> Some thought that there may be firewall issues as I am going out of a PC
> behind a Linux firewall (Masqueraded), over the public internet, into a
> Linux firewall to make the connection.  I have port 1723 incoming open
> on the remote firewall...

If memory serves, PPTP uses the GRE protocol (protocol 47), which ip
masquerading doesn't (or didn't) handle natively.

It's been several years since I last used PPTP, so I'm afraid I have
very little help to offer.  :(