echo "net.ipv6.conf.all.accept_ra=2

net.ipv6.conf.default.accept_ra=2

net.ipv6.conf.vmbr0.accept_ra=2

net.ipv6.conf.all.autoconf=2

net.ipv6.conf.default.autoconf=2

net.ipv6.conf.vmbr0.autoconf=2" > /etc/sysctl.conf

然后执行

sysctl -p