Hi All, i am facing problem during sending a packet that received in NF_IP_PRE_ROUTNG hook to network again . After receive a packet i have update the source and destination IP. then i have recalculate the checksum for IP and UDP layer. then i have to send that packet to network by using below command. NF_HOOK(PF_INET, NF_IP_LOCAL_OUT, skb, NULL, skb->dev, dst_output); ret = NF_STOLEN; return ret; But after loading my module kernel hang when it receive any data from peer. is there any other way to forward a packet to network after modification of IP header/ Regards, Padmalochan -- To unsubscribe from this list: send the line "unsubscribe netfilter" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html