IP forwarding
-------------
Please note: If you want to use pptpd to create host-to-site tunnels
(e.g. typical road-warrior setups), then you will need to enable IP
forwarding. This can be done by un-commenting
net.ipv4.ip_forward=1
in /etc/sysctl.conf.
Daemon disabled by default
--------------------------
A manual configuration is required before pptpd is usable. Therefore
the daemon is not started by default. Edit /etc/pptpd.conf and probably
alos /etc/ppp/pptpd-options, then issue "systemctl enable pptpd".
Support for non-Linux
---------------------
For the time being, pptpd is restricted to Linux only. Patches to
re-enable support for other platforms are welcome.
Issues on kfreebsd:
* bcrelay does not compile. Workaround: Disable bcrelay
* There's no pppd here but freebsd-ppp instead. Appearently it has a
completely different parameter usage.
Issues on hurd:
* bcrelay does not compile. Workaround: Disable bcrelay
* No ppp at all.