Cookbook | FortiGate / FortiOS 5.4.0 | Fortinet Documentation Library
Using Hairpinning in a Network
What do hair pins have to do with networking?
Hair-pinning, in a networking context, is the method where a packet travels to an interface, goes out towards the Internet but instead of continuing on, makes a “hair pin turn”, and comes back in on the same interface. Initially, it may seem unnecessary or pointless even but it does serve a purpose.
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