Linux创建IPv6 over IPv4 GRE隧道

1.Host A配置如下

shell> ip tunnel add gre1 mode gre remote 172.17.1.2 local 172.17.1.1 ttl 255

shell> ip link set gre1 up

shell> ip addr add 2000::1/126 dev gre1

2.Host B配置如下

shell> ip tunnel add gre1 mode gre remote 172.17.1.1 local 172.17.1.2 ttl 255

shell> ip link set gre1 up

shell> ip addr add 2000::2/126 dev gre1

3.隧道口ping测

Host A

shell> ping6 2000::2

Host B

shell> ping6 2000::1