>My question is what software can I/should I use to provide the VPN, IPsec 
>or some type of PPTP implementation ?

	Sorry that my reply is late, I don't read netbsd-users usually
	(I read it on the web).

	You may want to check KAME IPv6/IPsec kit.  You can find more about
	it at www.kame.net.  It is capable of doing IPv4 IPsec and IPv6 IPsec.
	NetBSD-current merged in KAME code (snapshot of late 1999/6) so
	there's a good chance for NetBSD 1.5 to include IPsec code.

	For other generic IPsec questions, I recommend the following book:

	IPsec: the new securitystandard for the Internet, intranets
	and virtual private networks
	N.Doraswamy and D.Harkins
	ISBN 0130118982
	http://www.amazon.com/exec/obidos/ASIN/0130118982/

itojun