Virtual Private Network - the Netgroup at Politecnico di Torino
Virtual Private Network - the Netgroup at Politecnico di Torino
Virtual Private Network - the Netgroup at Politecnico di Torino
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VPN Models<br />
• Overlay Model<br />
• IPSec-based (managed) service<br />
• Many separ<strong>at</strong>e highly meshed tunnels<br />
• Each VPN g<strong>at</strong>eway must know every<br />
o<strong>the</strong>r VPN g<strong>at</strong>eway<br />
• Routing is performed by <strong>the</strong> VPN<br />
g<strong>at</strong>eways<br />
• The network oper<strong>at</strong>or does not know <strong>the</strong><br />
actual destin<strong>at</strong>ion of VPN packets<br />
• The oper<strong>at</strong>or just provides <strong>the</strong><br />
possibility to move <strong>the</strong> packet to <strong>the</strong><br />
next VPN g<strong>at</strong>eway<br />
VPN - 24 © M. Bal<strong>di</strong> & L. Ciminiera: see page 2