What VPN feature allows traffic to exit the security appliance through the same interface it entered?

A.
Hair-pinning

B.
NAT

C.
NAT traversal

D.
split tunneling

Explanation:
BD
In network computing, hairpinning (or NAT loopback) describes a communication between two hosts behind the
same NAT device using their mapped endpoint. Because not all NAT devices support this communication
configuration, applications must be aware of it.
Hairpinning is where a machine on the LAN is able to access another machine on the LAN via the external IP
address of the LAN/router (with port forwarding set up on the router to direct requests to the appropriate
machine on the LAN).
Source: https://en.wikipedia.org/wiki/Hairpinning