Which security-enabled device is recommended to provide a site-to-site IPsec VPN solution， but not SSL？（）
- A Cisco Integrated Service Routers
- B Cisco ASA 5500 Series Security Appliance
- C CiscoWebVPN Services Module
- D CiscoIPsec VPN Module
搜答案，更轻松！
Which security-enabled device is recommended to provide a site-to-site IPsec VPN solution， but not SSL？（）