The popularity of new cyber-physical systems such as Industrial Internetor Industrial Internet of Things (IIoT) in new applications is creating new requirementssuch as high security, enhanced scalability, and optimal utilization of networkresources, efficient energy management and low operational cost. Specifically, theincreasing number of connected devices and new services will result in the increasingcapacity requirements for the cyber-physical systems. Thus, accommodating thesecure connectivity for this expected traffic growth is an imminent requirement offuture cyber-physical systems. Although the existing secure communication architecturesare able to provide a sufcient level of security, they are suffering from limitationssuch as limited scalability, over utilization of network resources and highoperational cost, mainly due to the complex and static security management procedures.On these grounds, SDN and NFV are promising technologies which areexpected to solve the limitations in current communication networks. The pursuit ofa cohesive cyber security strategy will minimize the risks and enable society to take advantage of the opportunities associated with the IIoT. In this chapter, we presentsthe possible secure connectivity solutions for IIoT/Industrial Internet.