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Date:      Tue, 11 Sep 2007 18:26:14 -0400
From:      Ed Maste <emaste@phaedrus.sandvine.ca>
To:        Jack Vogel <jfvogel@gmail.com>
Cc:        freebsd-current@freebsd.org
Subject:   Re: em0 hijacking traffic to port 623
Message-ID:  <20070911222614.GA36962@sandvine.com>
In-Reply-To: <2a41acea0707130921x38d35d3br62842ef118c93261@mail.gmail.com>
References:  <jhb@freebsd.org> <200707130848.01101.jhb@freebsd.org> <E1I9Kzu-0001lV-HJ@clue.co.za> <2a41acea0707130921x38d35d3br62842ef118c93261@mail.gmail.com>

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On Fri, Jul 13, 2007 at 09:21:53AM -0700, Jack Vogel wrote:

> >> > > On Mon, 21 May 2007, Ian FREISLICH wrote:
> >> > >
> >> > > > Hi
> >> > > >
> >> > > > We've noticed an issue on our firewalls where the first em device
> >> > > > in the system hijacks inbound port 623 tcp and udp.  The OS never
> >> > > > sees this traffic.
[patch omitted]

> Hardcoding this change into shared code is not the right place
> to do it, however I'll take a look at that and figure out a more
> appropriate approach.
> 
> Jack

Jack, do you have any update on adding a sysctl etc. to configure the
management port hijacking?  I was just bitten by the same problem and
am going to just hardcode ~(E1000_MANC_RMCP_EN | E1000_MANC_0298_EN)
for now but would like to switch to the fix that will actually end up
in the driver.

- Ed



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