Is GRE a TCP or UDP?

Related questions

1. Which routing protocol does Dmvpn support?
2. What is Cisco GRE?
3. What is the advantage of GRE tunnel?
4. What is Nbma address?
5. Is Gre a Layer 2?
6. What is GRE in networking?
7. What is next hop routing?
8. What is NHS in Dmvpn?
9. What is Nhrp in networking?
10. What is Dmvpn tunnel?

Tags

1. #protocol
2. #packets
3. #addition
4. #please
5. #running
6. #based
7. #inside
8. #enabled
9. #scenario
10. #number
11. #firewall
12. #server
13. #tunnel
14. #header