IT-223-L09 (VPN supplement) F2018.pptx - VPNs Additional Lecture Material IT 223 All instructors Virtual Private Networks • What is a virtual private

IT-223-L09 (VPN supplement) F2018.pptx - VPNs Additional...

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VPNs Additional Lecture Material IT 223 All instructors
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Virtual Private Networks What is a virtual private network? It is a tunnel from your current location to another location. They encrypt traffic (or not)depending on user specifications While the traffic may be encrypted in the tunnel, it may not be encrypted at the jump off point After jump-off point – traffic is anonymous. The source IP address recorded by the receiving host will reflect the VPN gateway address, not your home IP address. What about the last hop between the VPN gateway and the receiving host? This can be resolved with a hardware implementation – typically between two companies or organizations that share data. It can be implemented using a software solution as well – firewalls, for example. This is done by pre-sharing keys, schema, etc. Traffic will be anonymized after that hop – and when it comes back to you – the client, it will be re- encrypted at the VPN gateway you used as the “hop off point” in the first place, before it come back to you.
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  • Fall '08
  • Staff
  • IP address, Virtual private network, VPN gateway address

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