Debian/Ubuntu配置He.net IPv6隧道

1、注册He.net账号

2、创建1个“常规隧道”

3、从隧道详情扩展标签获取代码

        eg：auto he-ipv6
                    iface he-ipv6 inet6 v4tunnel
                    address x:x:x:x:x:x:x:x
                    netmask 64
                    endpoint 0.0.0.0
                    local 0.0.0.0
                    ttl 255

                    gateway x:x:x:x:x:x:x:x

4、将获取到的代码上位

$ sudo vim /etc/network/interfaces

local 应该是出口网卡获得的IP地址，最好设置成静态IP或者在路由中指定IP。

5、配置防火墙

$ sudo -s
# ip6tables -t nat -A POSTROUTING -o he-ipv6 -s x:x:x::/64 -j MASQUERADE

上段中 x:x:x::/64 应替换为代码中address中的地址去除最后一位

# echo 1 > /proc/sys/net/ipv6/conf/eth1/forwarding
# echo 1 > /proc/sys/net/ipv6/conf/he-ipv6/forwarding
# echo 1 > /proc/sys/net/ipv6/conf/all/forwarding

使用下列命令查看防火墙规则

# ip6tables -t nat -L -n
# ip6tables-save

6、重启网络模块

# /etc/init.d/network restart

7、测试IPv6环境

# ping6 2001:4860:4860::8888

或者

# ping6 google-public-dns-a.google.com

如果是下边显示的话就可以用了

$ ping6 2001:4860:4860::8888
PING 2001:4860:4860::8888(2001:4860:4860::8888) 56 data bytes
64 bytes from 2001:4860:4860::8888: icmp_seq=1 ttl=61 time=259 ms
64 bytes from 2001:4860:4860::8888: icmp_seq=2 ttl=61 time=284 ms
64 bytes from 2001:4860:4860::8888: icmp_seq=3 ttl=61 time=259 ms
64 bytes from 2001:4860:4860::8888: icmp_seq=4 ttl=61 time=259 ms
64 bytes from 2001:4860:4860::8888: icmp_seq=5 ttl=61 time=259 ms
--- 2001:4860:4860::8888 ping statistics ---
5 packets transmitted, 5 received, 0% packet loss, time 4001ms
rtt min/avg/max/mdev = 259.187/264.504/284.424/9.973 ms

----------------------------------------------

以下为ASDL上网方式的设置

1、获取He.net更新URL

例如：

https://User:[email protected]/nic/update?hostname=000000

User是用户名；Key是URL更新密码，可以自行设置，但是不能带特殊符号。

2、为系统设置开机更新和定时更新

开机更新：

$ sudo -s
# vim /etc/rc.local

如下所示：

#!/bin/sh -e
#
# rc.local
#
# This script is executed at the end of each multiuser runlevel.
# Make sure that the script will "exit 0" on success or any other
# value on error.
#
# In order to enable or disable this script just change the execution
# bits.
#
# By default this script does nothing.

# Print the IP address
_IP=$(hostname -I) || true
if [ "$_IP" ]; then
  printf "My IP address is %s\n" "$_IP"
fi
exit 0
~                                                                                                                            
~                                                                                                                            
~                                                                                                                            
~   

在exit 0前添加之前获取的更新URL

curl https://User:[email protected]/nic/update?hostname=000000

定时更新：

编辑定时策略

# vim /etc/crontab

# /etc/crontab: system-wide crontab
# Unlike any other crontab you don't have to run the `crontab'
# command to install the new version when you edit this file
# and files in /etc/cron.d. These files also have username fields,
# that none of the other crontabs do.

SHELL=/bin/sh
PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin

# m h dom mon dow user  command
17 *    * * *   root    cd / && run-parts --report /etc/cron.hourly
25 6    * * *   root    test -x /usr/sbin/anacron || ( cd / && run-parts --report /etc/cron.daily )
47 6    * * 7   root    test -x /usr/sbin/anacron || ( cd / && run-parts --report /etc/cron.weekly )
52 6    1 * *   root    test -x /usr/sbin/anacron || ( cd / && run-parts --report /etc/cron.monthly )
~                                                                                                                            
~                                                                                                                            
~

在最后一行添加如下内容

*/30 0  * * *   root    curl https://User:[email protected]/nic/update?hostname=000000

此条内容代表每30分钟执行1次，如要更改请自行搜索crontab定时运行方法。