What is the point of a loopback interface?

Related questions

1. What is a hardware loopback?
2. What is PCAP trace?
3. What is loopback traffic?
4. What is Npcap used for?
5. What is Npcap packet driver?
6. Why do we use loopback?
7. What is the loopback IP address 127.0 0.1 used for?
8. How does a loopback plug work?
9. What is Npcap loopback adapter?
10. Does Wireshark require a reboot?

Tags

1. #border
2. #determines
3. #outbound
4. #allows
5. #protocol
6. #interface
7. #routers
8. #loopback
9. #address
10. #neighborship
11. #gateway
12. #physical
13. #router
14. #between
15. #connected
16. #always