Why do we need tunneling in networking?

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Tags

1. #network
2. #public
3. #across
4. #allowing
5. #called
6. #internet
7. #secure
8. #private
9. #another
10. #tunneling
11. #process
12. #through
13. #encapsulation
14. #involves
15. #movement
16. #allows
17. #protocol
18. #communications