No, there is no such mechanism neither in 2.4 nor in 2.5 . We tried it out to get our first patch (new net_device feature NETIF_F_SHARED_IPV6 ...) in 2.4 kernel but without success. So I hope the current patch is ok and will be inserted in 2.5 and perhaps also in 2.4 ;-) Mit freundlichen Grüssen / Best regards Frank Pavlic Linux for eServer Development Schoenaicher Str. 220, 71032 Boeblingen Phone: ext. +49-(0)7031/16-2463, int. *120-2463 mailto: pavlic@de.ibm.com - : send the line "unsubscribe linux-net" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html