Configure your Win7 laptop as a NAT

1. Connect your laptop to the campus network via WiFi.
2. On the laptop, run Control Panel - Network and Sharing Center
3. Right click the interface of WLAN. Choose Property - Sharing.
   • Check "Allow other network users to connect through this computer's Internet connection."
   • Choose "Ethernet" as the "Home Networking Connection".
   

Client

1. Connect your PC to your laptop via Ethernet.
2. Now the connecting PC will receive an IPv4 address such as 192.168.137.100, and can browser the Internet using the public IPv4 of your laptop. Visit http://www.ipv6.org.tw/ to verify this.
3. Visit HiNet IPv6 Tunnel Broker to download gogoCLIENT. Follow the instruction to install it.
4. The default server is "anonymous.freenet6.net". Change it to "203.74.21.89". Press Apply and Connect. Now your client has IPv6 connection.
   • Verify by "ping -6 www.kame.net".
   • Accessing "www.ipv6.org.tw" or "www.kame.net" may indicate that you are still connecting via IPv4, because in Windows tunneled interfaces are less preferred.
   • Specifying the URL http://[2001:c50:ffff:1:21a:92ff:fe43:d665]/ allows your browser to access via IPv6.
   
   
5. Capture the tunnel packets with Wireshark. A capture filter such as "host 203.74.21.89" or "udp port 3653" would be useful.
6. You may wish to read RFC 5572 to know more about Tunnel Setup Protocol (TSP).

Providing IPv6 for Your Home Network

1. After a client is connected to IPv6 according to the above procedure, you may wonder whether it is necessary for you to install a gogoCLIENT for every device in your home network.
2. This will be a tedious. Some devices (such as IP phones) will not even allow you to install gogoCLIENT, so what can you do?
3. In the "Advanced" tab of gogoCLIENT, choose "Enable Routing Advertisements".
   
4. Reference: SAMS class Project 13: Router Advertisements