I find that there is IPv6-in-IPv4 tunnel support in Linux kernel, but how can I create an IPv4-in-IPv6 tunnel on Linux? I find there is a another implementation of IPv4-in-IPv6 tunnel called DSTM from ENST-Bretagne. It is not easy to use to me. Does such feature be included in the current linux kernel? What instruction should I use if I want to create such tunnel? Thanks for your kind support. Best Regards Zongjun - To unsubscribe from this list: send the line "unsubscribe linux-net" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html