  The rise in embedded and IoT device usage comes with an increase in LTE usage
as well. About 70\% of an estimated 18 billion IoT devices will be using
cellular LTE networks for efficient connections. This introduces several
challenges such as security, latency, scalability, and quality of service, for
which reason Edge Computing or Fog Computing has been introduced. The edge is
capable of offloading resources to the edge to reduce workload at the cloud.
Several security challenges come with Multi-access Edge Computing (MEC) such as
location-based attacks, the man in the middle attacks, and sniffing. This paper
proposes a Software-Defined Perimeter (SDP) framework to supplement MEC and
provide added security. The SDP is capable of protecting the cloud from the
edge by only authorizing authenticated users at the edge to access services in
the cloud. The SDP is implemented within a Mobile Edge LTE network. Delay
analysis of the implementation is performed, followed by a DoS attack to
demonstrate the resilience of the proposed SDP. Further analyses such as CPU
usage and Port Scanning were performed to verify the efficiency of the proposed
SDP. This analysis is followed by concluding remarks with insight into the
future of the SDP in MEC.
