SNCF — Securing Networks with Firepower — Question 191

Remote users who connect via Cisco Secure Client to the corporate network behind a Cisco Secure Firewall Threat Defense device are reporting no audio on calls when calling between remote users using their softphones. These same users can call internal users on the corporate network without any issues. What is the cause of this issue?

Answer options

• A. The hairpinning feature is not available on Cisco Secure Firewall Threat Defense
• B. Cisco Secure Firewall Threat Defense needs a NAT policy that allows outside to outside communication
• C. The Enable Spoke to Spoke Connectivity through Hub option is not selected on Cisco Secure Firewall Threat Defense
• D. Split tunneling is enabled for the Remote Access VPN on Cisco Secure Firewall Threat Defense

Correct answer: B

Explanation

The correct answer is B because a NAT policy that allows outside-to-outside communication is necessary for remote users to communicate with each other via their softphones. Option A is incorrect as hairpinning can be configured on Cisco Secure Firewall Threat Defense. Option C is not relevant since spoke-to-spoke connectivity isn't the issue, and option D pertains to split tunneling, which does not directly affect the audio call issue between remote users.