Hi, Does anybody have an idea which function of ip_queue.c is invoked when a userland process does a ipq_read ? Also, once a NF_QUEUE is returned by a netfilter hook and till the packet is copied to userland by ipq_read how many copies are involved ?. I believe there is just one copy when the packet is copied from sk_buff in the queue maintained by ip_queue is copied to the buffer supplied by ipq_read ? or are there more involved ? also --- is netfilter server down ? havent received any mails since the last two days, there seems to be no problem at my mail server ? thanks Amit "DISCLAIMER: This message is proprietary to Hughes Software Systems Limited (HSS) and is intended solely for the use of the individual to whom it is addressed. It may contain privileged or confidential information and should not be circulated or used for any purpose other than for what it is intended. If you have received this message in error, please notify the originator immediately. If you are not the intended recipient, you are notified that you are strictly prohibited from using, copying, altering, or disclosing the contents of this message. HSS accepts no responsibility for loss or damage arising from the use of the information transmitted by this email including damage from virus."