NAT64采用tayga实现，DNS64采用bind9.8实现。

1 平台搭建

平台为ubuntu12.04 Desktop版本。正常安装即可。

2 NAT64(tayga)

2.1 安装

在终端模式下输入

sudo apt-get install tayga

2.2 配置

2.2.1 相关设置

sudo gedit /etc/tayga.conf

按照说明配置，目前实现方案不需要修改。

2.2.2 创建、启动设备

tayga –mktun

ip link set nat64 up

2.2.3 地址、路由配置

ip addr add 192.168.0.1 dev nat64 (修改为本机IPv4地址)

ip addr add 2001:db8:1::1 dev nat64 (修改为本机IPv6地址)

ip route add 192.168.255.0/24 dev nat64(不需要修改)

ip route add 2001:db8:1:ffff::/96 dev nat64(不需要修改)

2.2.4 启动IPv4、IPv6转发

sysctl -w net.ipv4.conf.all.forwarding=1

sysctl -w net.ipv6.conf.all.forwarding=1

2.2.5 启动tayga

tayga

可使用tayga –d进入debug模式。

ping6 2001:db8:1:ffff::192.168.0.1(192.168.0.1修改为本机IPv4地址)

2.2.6 NAT64设置

iptables -t nat -A POSTROUTING -s 192.168.255.0/24 -j SNAT --to-source 192.168.0.1 (修改为本机IPv4地址)

iptables -A FORWARD -s 192.168.255.0/24 -i nat64 -j ACCEPT

3 DNS64 bind9

3.1 安装

sudo apt-get install bind9

3.2 配置

sudo gedit /etc/bind/named.conf.options

修改为如下：

options {

directory "/var/cache/bind";

// If there is a firewall between you and nameservers you want

// to talk to, you may need to fix the firewall to allow multiple

// ports to talk. See http://www.kb.cert.org/vuls/id/800113

// If your ISP provided one or more IP addresses for stable

// nameservers, you probably want to use them as forwarders.

// Uncomment the following block, and insert the addresses replacing

// the all-0's placeholder.

listen-on-v6 { any; };

allow-query { any; };

dns64 2001:db8:1:ffff::/96 {

clients { any; };

};

forwarders {

8.8.8.8; //DNS地址

};

//=================================================================

// If BIND logs error messages about the root key being expired,

// you will need to update your keys. See https://www.isc.org/bind-keys

//================================================================

dnssec-validation auto;

auth-nxdomain no; # conform to RFC1035

listen-on-v6 { any; };

};

修改完成后，输入 named.conf查看修改是否成功。

3.3 启动bind9

Bind9默认安装后开机启动。设置完成后，输入

/etc/init.d/bind restart

4 使用

4.1 Windows

用管理员权限进入cmd，输入

netsh

>interface ipv6

>add route 2001:db8:1:ffff::/96(修改为机器的ipv6地址) "本地连接" 2001:db8:1::1(修改为服务器的ipv6地址)

然后设置DNS服务器为NAT64地址即可

4.2 Linux

添加路由

ip route add 2001:db8:1:ffff::/96 (修改为机器的ipv6地址) via 2001:db8:1::1

(为服务器的ipv6地址)

然后设置DNS服务器为NAT64地址即可

注：

本文中服务器地址为：192.168.130.42

2400:dd01:1001:130:250:c2ff:fe23:f051/64