@book{91082,
	author = {Cantrell, Chris. and ebrary, Inc.},
	title = {Firewall policies and VPN configurations},
	publisher = {Syngress,},
	year = {c2006.},
	address = {Rockland, MA :},
	note = {Includes index.},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10142565}
}