How does tunneling work on a VPN?

Related questions

1. What is the difference between site to site VPN and remote access VPN?
2. Is open VPN good?
3. How many types of VPN are there?
4. How does client to site VPN Work?
5. What is client to site VPN?
6. What is VPN site to site?
7. Which is better IPSec or SSL VPN?
8. Is SSL VPN better than IPSec?
9. Which one is more secure SSL or VPN?
10. Is private tunnel safe?

Tags

1. #private
2. #encapsulating
3. #commonly
4. #virtual
5. #packet
6. #postcard
7. #internet
8. #tunnel
9. #called
10. #tunneling
11. #equivalent
12. #create
13. #works
14. #encrypted
15. #network
16. #encapsulation
17. #address
18. #putting
19. #envelope