Felipe Martínez Hermo <felipe@galicia.ugt.org> writes: > I have a 5-site network. Each with a Cable/DSL link. Currently > I have a Netscreen box on each site. I want to substitute the NS box > with Linux boxes so I can manage bandwith, set up a firewall and > have a configuration which is built up on standards. Do you need encryption while the traffic travels through the public network?