why do you configure GRE in IPV6？
正确答案:
（1）use GRE tunnels to carry ipv6 traffic over ipv4 network.
（2）The primary use of GRE tunnels is for stable connections that require regular secure communication between two edge routers or between an edge router and an end system.
（2）The primary use of GRE tunnels is for stable connections that require regular secure communication between two edge routers or between an edge router and an end system.
答案解析:有
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