From mboxrd@z Thu Jan 1 00:00:00 1970 From: Willy Tarreau Subject: Re: tcp vulnerability? haven't seen anything on it here... Date: Thu, 22 Apr 2004 15:17:04 +0200 Sender: netdev-bounce@oss.sgi.com Message-ID: <20040422131704.GA6839@alpha.home.local> References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: linux-kernel@vger.kernel.org, netdev@oss.sgi.com Return-path: To: "Richard B. Johnson" Content-Disposition: inline In-Reply-To: Errors-to: netdev-bounce@oss.sgi.com List-Id: netdev.vger.kernel.org On Thu, Apr 22, 2004 at 07:35:54AM -0400, Richard B. Johnson wrote: > Has anybody checked to see what Linux does if it receives a > RST to the broadcast address? It would be a shame if all > connections were dropped! I don't see how this would be possible : a TCP packet is matched *only* if it refers to a valid session. If you have no session established from/to the broadcast address, there's no possibility that an RST targetted at this address terminates anything, even if the ports are OK. Cheers, Willy