A Windows 2000 host can be manually configured to access IPv6 sites through the 6to4 tunnelling mechanism. The "ipv6" utility, which is included in the "Microsoft IPv6 Technology Preview" software, is used for setting the appropriate configuration to the 6to4 tunnel interface. The required steps for acquiring connectivity with other (6to4) IPv6 hosts are the following:

1. Configure the host 6to4 address for the "Tunnel Pseudo-Interface", using the colon-hexadecimal encoding of the IPv4 address of the Ethernet interface. For example, if the IPv4 host address is 195.251.29.19, the 6to4 IPv6 address should be 2002:c3fb:1d13::c3fb:1d13 and the full command is

C:/>ipv6 adu 2/2002:c3fb:1d13::c3fb:1d13

Note that the "Tunnel Pseudo-Interface" is used for statically configured tunnels, automatic tunnelling and 6to4 tunnels.

2. Add the appropriate entry in the routing table through the command that points all the IPv6 packets
with 6to4 address to the "Tunnel Pseudo-Interface" by executing the command:

C:/>ipv6 rtu 2002::/16 2

3. In order to enable communication to an IPv6 network, a tunnel should be created to a 6to4 relay router. In the following example the command adds an IPv6 default route to a 6to4 relay at 194.177.210.38 through the interface 2:

C:/>ipv6 rtu ::/0 2/::194.177.210.38 pub