From: Jason Opperisano <opie@817west.com>
To: netfilter@lists.netfilter.org
Subject: Re: conntrack has problems with syn-ack-psh set
Date: Sat, 1 Jan 2005 12:50:16 -0500 [thread overview]
Message-ID: <20050101175016.GA10480@bender.817west.com> (raw)
In-Reply-To: <41D0B008.1030400@cascadiabhc.org>
On Mon, Dec 27, 2004 at 04:59:52PM -0800, Shaun Savage wrote:
> I am have a problem getting iptables to work with a bain dead linksys
> printserver. After is receives a syn packet it send a syn-ack-psh
> packet. Is psh allowed here? The conntrack can't find a match and the
> packet is INVALID. NO connection.
SYN-ACK-PSH is not a valid response to a SYN packet. you will never
get iptables (or any stateful firewall) to recognize this as a valid
connection. you will have to allow this communication without relying on
"-m state."
-j
next prev parent reply other threads:[~2005-01-01 17:50 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-12-28 0:59 conntrack has problems with syn-ack-psh set Shaun Savage
2005-01-01 17:50 ` Jason Opperisano [this message]
2005-01-04 8:40 ` Michael Mueller
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