I have used PPPoE to obtain a public IP address 218.103.230.241 (da67:e6f1). Upon activating the 6to4 tunnel interface on XP, the following IPv6 addresses are assigned :
IP address: 2002:da67:e6f1::da67:e6f1
Default Gateway: 2002:c058:6301::c058::6301
The IP address of the interface can be understand easily which append 218.103.230.241 in hex format after prefix 2002. As for the GW, c058:6301 translate to 192.88.99.1 which is an anycast address for 6to4 relay router. On tracert, it goes to the node of Hurricane Electric established in HK:
Tracing route to 192.88.99.1 over a maximum of 30 hops
1 1 ms 1 ms 1 ms 192.168.73.1
2 207 ms 228 ms 114 ms pcd-hhm23-2-rx.netvigator.com [203.218.199.254]
3 226 ms 208 ms 111 ms n219076123050.netvigator.com [219.76.123.50]
4 18 ms 17 ms 56 ms 218.102.21.66
5 67 ms 78 ms 100 ms hurricaneelectric-RGE.hkix.net [202.40.161.158]
6 26 ms 20 ms 62 ms 192.88.99.1
Trace complete.
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