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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Provider Provisioned Deployment Mode<br />
1. Remote user initi<strong>at</strong>es PPP connection with<br />
NAS th<strong>at</strong> accepts <strong>the</strong> call<br />
2. NAS identifies remote user<br />
3. NAS initi<strong>at</strong>es L2TP or PPTP tunnel to desired<br />
corpor<strong>at</strong>e g<strong>at</strong>eway (access server)<br />
4. Corporare g<strong>at</strong>eway au<strong>the</strong>ntic<strong>at</strong>es remote<br />
user accor<strong>di</strong>ng to corpor<strong>at</strong>e security policy<br />
5. Corpor<strong>at</strong>e g<strong>at</strong>eway confirms acceptance of<br />
tunnel<br />
6. NAS logs acceptance and/or traffic (optional)<br />
7. Corpor<strong>at</strong>e g<strong>at</strong>eway performs PPP<br />
negoti<strong>at</strong>ions with remote users (e.g.,<br />
IPaddress assignment)<br />
8. End-to-end d<strong>at</strong>a tunneled between user and<br />
corpor<strong>at</strong>e g<strong>at</strong>eway<br />
VPN - 44 © M. Bal<strong>di</strong> & L. Ciminiera: see page 2
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