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Layer 2 Tunneling Protocol
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Network Layer — Security & VPN
协议概览
全称
Layer 2 Tunneling Protocol
缩写
L2TP
OSI 层
Network Layer
类别
Security & VPN
默认端口
1701
RFC
RFC 3931
关于 L2TP
Tunneling protocol combining features of PPTP and L2F. Often paired with IPsec for encryption in enterprise VPN deployments.
Network Layer
Security & VPN
端口 1701
标准参考
L2TP定义于互联网工程任务组（IETF）发布的RFC 3931中。RFC是互联网协议的官方标准文档，可免费公开查阅。