developer-roadmap/src/data/roadmaps/cyber-security/content/loopback@W_oloLu2Euz5zRSy7v_T8.md

Loopback

A loopback is a mechanism where network traffic is routed back to the originating device. It's essentially a shortcut for a device to talk to itself over a network. This is achieved using a special IP address (typically 127.0.0.1 for IPv4 or ::1 for IPv6) and a designated network interface (the loopback interface). The data never actually leaves the host, instead being internally redirected.

Visit the following resources to learn more:

• @article@Understanding the Loopback Address and Loopback Interfaces