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Generic Routing Encapsulation
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Network Layer — Security & VPN
协议概览
全称
Generic Routing Encapsulation
缩写
GRE
OSI 层
Network Layer
类别
Security & VPN
RFC
RFC 2784
关于 GRE
Tunneling protocol encapsulating a wide variety of network layer protocols inside IP tunnels. Used for site-to-site VPNs, DMVPN, and carrying multicast traffic over unicast WAN links.
Network Layer
Security & VPN
标准参考
GRE定义于互联网工程任务组（IETF）发布的RFC 2784中。RFC是互联网协议的官方标准文档，可免费公开查阅。