A Next-Generation Firewall (NGFW) is the best solution to meet the company's needs. NGFWs combine multiple security functions, such as VPN support, intrusion prevention, application-layer (Layer 7) inspection, and more, into a single device, simplifying network security management while improving security coverage. NGFWs can support multiple VPNs with different security contexts, which is critical for the company's requirement. CASP+ emphasizes NGFWs for their ability to collapse multiple security technologies into one platform and offer application-layer security, addressing modern perimeter security needs. References: * CASP+ CAS-004 Exam Objectives: Domain 3.0 - Enterprise Security Architecture (NGFW and Unified Security Technologies) * CompTIA CASP+ Study Guide: NGFW and Perimeter Security Strategies