GRE key as the traffic selector for IPsec tunnel
China Mobile
Hitachi
ZTE USA
This document describes the IPsec Tunnel based on GRE key as the traffic selector. When GRE key is used in IP packet transmission scenario of the wireless communication. Several enterprise need different security policy when transmit the packet through some unguaranteeded Internet cloudy. This document propose to adopt GRE key as the IPsec traffic selector.