Re: 6-current 'corrupted mac on input' on cvs co

From: Andre Guibert de Bruet (andy_at_siliconlandmark.com)
Date: 11/02/04

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    Date: Mon, 1 Nov 2004 18:25:06 -0500 (EST)
To: Charles Swiger <cswiger@mac.com>

    On Mon, 1 Nov 2004, Charles Swiger wrote:

    > On Nov 1, 2004, at 2:29 PM, Josef El-Rayes wrote:
    >> Received disconnect from 192.168.0.5: 2: Corrupted MAC on input.
    >> cvs[checkout aborted]: received broken pipe signal
    >>
    >> any ideas? do you need more input?
    >
    > The error message comes from /usr/src/crypto/openssh/packet.c, line 973.
    >
    > I haven't seen it happen often, but there seems to be some correlation
    > between using NAT or having packets get fragmented due to path MTU issues.
    > Any data corruption in the packets going by ought to be detected and fixed at
    > the TCP level, but if it doesn't, SSH will notice and drop the connection.

    As Josef pointed out in his other post to this thread, it is due to a
    corruption bug in if_sk. I saw this type of thing with if_nge w/mpsafenet
    set to 1 back in september (Check the archives for the reference), shortly
    after mpsafenet was made standard.

    Regards,

    | Andre Guibert de Bruet | Enterprise Software Consultant >
    | Silicon Landmark, LLC. | http://siliconlandmark.com/ >
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