IPSec VPN安全技术没有用到()。
- A.隧道技术
- B.加密技术
- C.身份认证技术
- D.入侵检测技术
正确答案及解析
正确答案
解析
IPSec VPN包含了认证头(AH)和封装安全载荷(ESP)。AH主要用以提供身份认证、数据完整性保护、防重放攻击。ESP则可以提供数据加密、数据源身份认证、数据完整性保护、防重放攻击多项功能。IPSec VPN可提供传输模式和隧道模式两种工作方式。但没有入侵检测功能。
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