https://tomchen.github.io/symmetric-nat-test/
查看当前的网络类型
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https://ipw.cn/
https://ip.taobao.com/ipSearch
查看是否支持IPv6
https://www.test-ipv6.com/index.html.zh_CN
https://test-ipv6.com/
https://ipv6test.wcode.net/
IPV4
https://myip.ipip.net,
https://ddns.oray.com/checkip,
https://ip.3322.net,
https://v4.yinghualuo.cn/bejson”,
IPV6
https://speed.neu6.edu.cn/getIP.php,
https://v6.ident.me,
https://6.ipw.cn,
https://v6.yinghualuo.cn/bejson,
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http://ip.taobao.com/outGetIpInfo?ip=43.2.1.3&accessKey=alibaba-inc
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Debian开启和关闭Ipv6的方法
检查系统是否有加载ipv6内核
lsmod | grep ipv6
返回类似下面的数据，则表示加载了ipv6内核
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5
6 | nf_reject_ipv6 16384 1 ip6t_REJECT
nf_log_ipv6 16384 5
nf_conntrack_ipv6 20480 8
nf_defrag_ipv6 16384 1 nf_conntrack_ipv6
nf_log_common 16384 2 nf_log_ipv6,nf_log_ipv4
nf_conntrack 114688 8 nf_conntrack_ipv6,nf_conntrack_ftp,nf_conntrack_ipv4,nf_conntrack_broadcast,nf_nat_ftp,nf_conntrack_netbios_ns,xt_conntrack,nf_nat
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检查是否有ipv6地址
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3 | ifconfig
ip address list
netstat -anptl
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临时关闭ipv6的命令
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2 | sysctl -w net.ipv6.conf.all.disable_ipv6=1
sysctl -w net.ipv6.conf.default.disable_ipv6=1
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临时开启ipv6命令
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2 | sysctl -w net.ipv6.conf.all.disable_ipv6=0
sysctl -w net.ipv6.conf.default.disable_ipv6=0
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永久关闭系统ipv6
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6
7
8 | echo " ">>/etc/sysctl.conf
echo "# made for disabled IPv6 in $(date +%F)">>/etc/sysctl.conf
echo 'net.ipv6.conf.all.disable_ipv6 = 1'>>/etc/sysctl.conf
echo 'net.ipv6.conf.default.disable_ipv6 = 1'>>/etc/sysctl.conf
echo 'net.ipv6.conf.lo.disable_ipv6 = 1'>>/etc/sysctl.conf
tail -5 /etc/sysctl.conf
sysctl -p
netstat -anptl
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或者编辑系统内核配置文件
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2
3
4 | vi /etc/sysctl.conf //编辑系统内核文件，添加以下代码
net.ipv6.conf.all.disable_ipv6 = 1
net.ipv6.conf.default.disable_ipv6 = 1
net.ipv6.conf.lo.disable_ipv6 = 1
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永久开启系统的ipv6，把上面代码的1改为0即可。。。
查看系统ipv6状态命令
1
2 | cat /proc/sys/net/ipv6/conf/all/disable_ipv6
cat /proc/sys/net/ipv6/conf/default/disable_ipv6
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返回0表示启用，1则表示禁用ipv6