naptd开发环境搭建

1.硬件设备，2台pc，其中的一台pc带有两个网卡；
2.软件环境，带有两个网卡的pc上安装了ubuntu9.04，另一台pc上安装了Fedora Core 12;
3.配置网卡和路由：
  1)ubuntu9.04上的两个网卡的配置如下：
    eth0      Link encap:Ethernet  HWaddr 00:1d:7d:cb:d0:bb 
          inet addr:10.3.49.196  Bcast:10.3.255.255  Mask:255.255.0.0
          inet6 addr: fe80::21d:7dff:fecb:d0bb/64 Scope:Link
          UP BROADCAST RUNNING PROMISC MULTICAST  MTU:1500  Metric:1
          RX packets:127036 errors:0 dropped:0 overruns:0 frame:0
          TX packets:28589 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:13375985 (13.3 MB)  TX bytes:27462930 (27.4 MB)
          Interrupt:253 Base address:0x4000

    eth1      Link encap:Ethernet  HWaddr 00:0a:eb:f8:80:88 
          inet addr:192.168.1.198  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::20a:ebff:fef8:8088/64 Scope:Link
          inet6 addr: 3ffe::c0a8:1c4/64 Scope:Global
          UP BROADCAST RUNNING PROMISC MULTICAST  MTU:1500  Metric:1
          RX packets:100550 errors:0 dropped:0 overruns:0 frame:0
          TX packets:558 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:11373363 (11.3 MB)  TX bytes:66500 (66.5 KB)
          Interrupt:20 Base address:0xa000
  修改/etc/network/interfaces文件
  添加如下
  iface eth1 inet6 static
  address 3ffe::192.168.1.196
  netmask 64
  iface eth1 inet static
  address 192.168.1.198
  netmask 24
  然后重启机器，就可在eth1上添加ipv6的地址3ffe::192.168.1.196
 
  2)Fedora Core12上网卡的配置如下:
  eth0      Link encap:Ethernet  HWaddr 00:30:48:21:D3:B8 
          inet addr:10.3.49.197  Bcast:10.3.255.255  Mask:255.255.0.0
          inet6 addr: fe80::230:48ff:fe21:d3b8/64 Scope:Link
          inet6 addr: 3ffe::c0a8:1c5/64 Scope:Global
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:26647 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1046 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:2336394 (2.2 MiB)  TX bytes:114955 (112.2 KiB)
  修改/etc/sysconfig/network-script/icfg-eth0文件，添加
  IPV6INIT=yes
  PEERDNS=yes
  IPV6ADDR=3ffe::192.168.1.197
  然后重启机器，就可以在eth0上添加3ffe::192.168.197地址
  添加路由:
  route add -host 192.168.1.197 gw 10.3.49.196
  这样，在ping192.168.1.197时，就把包转到Ubuntu9.04的eth0网卡上
4.在Ubuntu9.04机器上部署naptd软件。
  配置如下：
Ataga IPv4/IPv6 NAPT Configuration Maker
(c) 2005 by Lukasz Tomicki <[email protected]>

Do you want to create a new configuration? [Y/n]

Do you want IPv4 addresses from the outside interfaces to be automatically used as part of the NAT pool? [Y/n]

Do you want to configure additional address as part of your NAT pool? [y/N]

Do you want to create a pool of public IPv4 addresses that will allow incoming connections to be dynamically mapped to appropriate IPv6 addresses? [y/N]
y
Enter the first public IPv4 address pool to use.
starting IP: 192.168.1.197
ending IP (inclusive) [192.168.1.197]: 192.168.1.198

Do you want to enter more address pools? [y/N]

Do you want to create static mappings of public IPv4 addresses that will allow incoming connections to reach IPv6 hosts? [y/N]
y
IPv4 address: 192.168.1.197
IPv6 address: 3ffe::192.168.1.197

Do you want to enter another static mapping? [y/N]

Enter the name of the first inside (IPv6) interface that you want NAT-PT to listen on.
interface (eth0 eth1 pan0): eth1

Do you want to enter more interfaces? [y/N]

Enter the name of the first outside (IPv4) interface that you want NAT-PT to listen on.
interface (eth0 eth1 pan0): eth0

Do you want to enter more interfaces? [y/N]

Enter the TCP translation timeout in seconds [86400]:
Enter the UDP translation timeout in seconds [3600]:
Enter the ICMP translation timeout in seconds [30]:

Enter the IPv6 prefix that will be used as the destination for translations.
prefix [2000:ffff::]: 3ffe::

Please enter the IPv4 address of the DNS server you are currently using.
IPv4 DNS server: 202.106.0.20

You can configure hosts for automatic DNS translation by using the DNS server below.
IPv6 DNS Server: 3ffe::ca6a:14

Thank you for choosing Ataga as you IPv4/IPv6 NAT-PT solution.
Setup is now complete. Type 'naptd' to start NAT-PT.

5.测试
  在ubuntu机器上运行naptd
  在Fedora机器上运行ping 192.168.1.197
  在ubuntu机器上运行tcpdump host 10.3.49.197 -i eth0,可以看到icmp包已经到eth0网卡,
  在Fedora机器上可以看到:
  PING 192.168.1.197 (192.168.1.197) 56(84) bytes of data.
  64 bytes from 192.168.1.197: icmp_seq=22 ttl=63 time=21.4 ms
  64 bytes from 192.168.1.197: icmp_seq=23 ttl=63 time=1.58 ms
  64 bytes from 192.168.1.197: icmp_seq=24 ttl=63 time=1.53 ms
  64 bytes from 192.168.1.197: icmp_seq=25 ttl=63 time=1.53 ms
  64 bytes from 192.168.1.197: icmp_seq=26 ttl=63 time=1.53 ms
  64 bytes from 192.168.1.197: icmp_seq=27 ttl=63 time=1.52 ms
  64 bytes from 192.168.1.197: icmp_seq=28 ttl=63 time=1.57 ms
  64 bytes from 192.168.1.197: icmp_seq=29 ttl=63 time=1.55 ms
6.结论
  naptd开发环境搭建成功。