开启ipv6
1.修改/etc/sysctl.conf
vim /etc/sysctl.conf
#net.ipv6.conf.all.disable_ipv6 = 1
net.ipv6.conf.all.disable_ipv6 = 0
net.ipv6.conf.default.disable_ipv6 = 0
net.ipv6.conf.lo.disable_ipv6 = 0
2.执行命令 启用IPv6
sysctl -p
3.查看ip
ifconfig
附属：/etc/sysconfig/network 网络配置
/etc/sysconfig/network-scripts/ifcfg-eth0 网卡配置
ping ipv4addr
ping6 ipv6addr%网卡名字(ifcfg-eth0 DEVICE=eth0)
相关测试网站：http://test-ipv6.com/
http://ipv6-test.com/