Question: In a Home enhanced Node B (HeNB) setup, when utilizing IPsec Tunnel for communication with the HeNB Management System (HeMS), what additional security measure can optionally be employed for end-to-end security within this tunnel?
Option 1: Utilize only Network Operator’s predefined Security Policies
Option 2: Employ an additional layer of encryption using AES without any transport protocol
Option 3: Utilise SSL/TLS within the IPsec Tunnel
Option 4: Implement a proprietary security protocol outside of standard telecom practices
Explanation: According to the security management requirements for HeNB, when an IPsec Tunnel is used for communication with the HeMS, there's an option to utilize SSL/TLS within this tunnel. This provides an additional layer of end-to-end security, ensuring confidentiality and integrity of the data exchanged between the HeNB and the HeMS. This approach aligns with enhancing security without compromising interoperability or standard telecom practices.