Hi,
i'm developing a distributed application, connecting many remote
points with a central point. These devices will exchange sensitive
data with the central server.

I'd like to plan an infrastructure that protects data security on the
links between the remote points and the central point, so i'd like to
use VPNs to protect the links.

Speaking about point-to-lan (not site-to-site) VPNs, what is the
theoretical limit number of VPN connections that a m0n0wall firewall
can support? It's only an hardware problem, or there are software
limitations?
Should i use a PPTP or IPSEC for this purpouse?

Thank you i.a.

Marco