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The telecommunications industry is rapidly advancing with the adoption of cloud-native technologies, aiming to enhance service delivery and network management. Kubernetes, an open-source platform for automating containerized applications, plays a significant role in this transformation. However, the use of Kubernetes in telecommunications presents unique challenges, particularly in effective network traffic separation. Thus, this paper proposed an approach, called SecInt, to explore the feasibility and implications of exposing services on secondary network interfaces in Kubernetes to address traffic separation issues. Moreover, the paper underscores the need for further development and optimization, suggesting that with continued advancements, service exposure through secondary interfaces could enhance network management and service delivery in cloud-native environments.