Hi Ivan, thanks a lot for the info about the nth module. Well I know that the quality of the link is going to drop but this is what exactly I want :) I want to force a client "reduce" its rate by not sending ACKs to him. My concern is that 802.11 ACKs are being handled at the firmware and I do not know if iptables can handle this. Anyone knows anything about this? Thanks a lot, Kostas --- On Wed, 1/28/09, Ivan Petrushev <ivanatora@xxxxxxxxx> wrote: > From: Ivan Petrushev <ivanatora@xxxxxxxxx> > Subject: Re: Blocking outgoing 802.11 ACKs > To: kpele_ntua@xxxxxxxxx > Cc: netfilter@xxxxxxxxxxxxxxx > Date: Wednesday, January 28, 2009, 6:29 AM > iptables has "nth" match extension that matches > every n-th packet. It > is described in the man page. > But why would you want to drop ACK packets? That would have > negative > impact on your link. > > Ivan. > > On Wed, Jan 28, 2009 at 12:41 PM, Kostas Pelechrinis > <kpele_ntua@xxxxxxxxx> wrote: > > Hi all, > > > > I have two nodes communicating via their wireless > interfaces. Let us assume that node A sends packets to node > B. Once node B is receiving the packets, he transmits the > 802.11 ACK frame. What I want to do is to prevent node B > from sending this ACK frames once every two packets for > example. > > > > One indirect way I have thought about is setting the > following rule to node B: > > > > iptables -A INPUT -i ath0 -m limit --limit > _SPECIFIED-LIMIT_ -s _NODE'S A IP_ -j DROP > > > > However, I am not sure if this prevents the 802.11 > ACKs from being transmitted. This has to do with the place > where the above rule is being enforced. > > > > Do you have any comments or suggestions on how I can > achieve what I am trying to? > > > > Thanks, > > Kostas > > > > > > > > -- > > 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 > > -- 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
