Comp Sci Is VPN all about encapsulating the source and destination IP address?

  • Thread starter Thread starter shivajikobardan
  • Start date Start date
  • Tags Tags
    Source
Click For Summary
A VPN primarily encrypts the data payload and can also encrypt the source and destination IP addresses, enhancing privacy and security. The discussion raises questions about whether encapsulating firewall addresses is necessary if the IP addresses are already encrypted. Participants express confusion about the complexities of VPN functionality and seek clarification on specific aspects. References to copyrighted materials and the need for valid citations are highlighted as important for understanding VPNs. Overall, the conversation emphasizes the need for clearer information on how VPNs operate beyond basic encapsulation and encryption.
shivajikobardan
Messages
637
Reaction score
54
Homework Statement
VPN-Virtual Private Network
Relevant Equations
None
What’s encrypted here? Is the source and destination IP address encrypted? Is the firewall1 address and firewall2 address encrypted? Is the payload also encrypted?
Is this all what a VPN does? I can’t really believe that VPN only encapsulates and encrypts.
If it’s encrypting the source and destination IP address, is encapsulating with firewall address necessary? Because nobody is going to find about that.
8tg06U0PsMstGcsScoIgdr9eFbpp3-LOSTyMtyRDd-zMiUQPiw.png

FHDl4y-ktRMVGP6ZXrnIysXYfyIeZ8Oa8BC2-ityIxrou75x4g.png

hql9pFIt1liByaB39skq4PnOqxkGkApJ31q0E2l85trGZnJS6g.png

GZ5QGOg5gUHpyXBlAmRWretxfHFHI6ZUBfP4fHfqq9S2HIhb-w.png

I feel I'm missing some crucial information about the intricacy of VPN working. So, please guide.
 
Physics news on Phys.org
Where did you get those copyrighted diagrams? Do you own their copyright?

And you know that you need to post valid references and ask *specific* questions about those references. Start here for a basic intro:

https://en.wikipedia.org/wiki/Virtual_private_network
 
Reply
  • Like
Likes shivajikobardan
It's from the book "Cryptography and Network Security " by "Atul Kahate". I still don't get how is this about VPN? This looks about Firewalls.
 
Thread 'Full bridge circuit with inductor and resistor'

Thread 'Full bridge circuit with inductor and resistor'

The above is the circuit i am calculating the inductor current. During the positive half of the sine input D1 and D3 are conducting so the circuit becomes My calculations are as below Are the above equations ok? When transitioning from +Ve cycle to -Ve sine wave does the above equations still applicable? During the negative cycle the diodes D2 and D4 are conducting and the current direction is going into the inductor same as when diodes D1 and D3 are conducting. According to me the same...
View full post »

Similar threads

Comp Sci Data Encryption Standard Confusion
Replies
2
Views
1K
Comp Sci How Comprehensive Should an Undergraduate Explanation of MPLS Be?
Replies
1
Views
1K
Anonimity: Time to take the internet back.
Replies
3
Views
4K
Comp Sci If all edge weights are distinct, then the MST is unique
Replies
4
Views
3K
How are IP addresses assigned and used in different networks?
Replies
3
Views
3K
Anyone know about "Superloads" in transportation?
Replies
12
Views
3K
BRS: PKI Cryptosystems for SA/Ms: A Tutorial
Replies
13
Views
4K
Job Skills Labelling one's questions, interests and education (career wise)
Replies
4
Views
2K
I Balloon experiment - Classical Physics vs. Statistical Physics
Replies
16
Views
2K
Screw materials: AISI 316 vs A4-80
Replies
10
Views
3K