From mboxrd@z Thu Jan 1 00:00:00 1970 From: Philip Craig Subject: Re: creating SYN bursts Date: Wed, 23 Nov 2005 15:45:43 +1000 Message-ID: <43840207.5080802@snapgear.com> References: <20051122025400.GD29926@jukie.net> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20051122025400.GD29926@jukie.net> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: netfilter-bounces@lists.netfilter.org Errors-To: netfilter-bounces@lists.netfilter.org Content-Type: text/plain; charset="us-ascii" To: Bart Trojanowski Cc: netfilter@lists.netfilter.org On 11/22/2005 12:54 PM, Bart Trojanowski wrote: > I am doing some syn-flood testing. I would like to create bursts of > real connections by using 'wget &' from a loop in user space, and have > the connections "queued up". When everything is ready, I would like to > have all the SYNs sent out at (almost) the same time. > > Is it possible to do something like this? Can I use existing iptables > plugins? If not, what NF primitives should I employ? Use the QUEUE target to send the packets to userspace, and then have a userspace application queue them until you are ready.