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From: Rick Jones <rick.jones2@hp.com>
To: David Miller <davem@davemloft.net>
Cc: netdev@vger.kernel.org
Subject: Re: DF, IP ID always 0 and the reassembly protections
Date: Tue, 20 Jun 2006 17:35:50 -0700	[thread overview]
Message-ID: <44989466.5070308@hp.com> (raw)
In-Reply-To: <20060620.171912.70221261.davem@davemloft.net>

David Miller wrote:
> From: Rick Jones <rick.jones2@hp.com>
> Date: Tue, 20 Jun 2006 16:44:55 -0700
> 
> 
>>Doesn't that mechanism rely on watching the IP ID's between the pair of 
>>IPs?  For both fragmented and non-fragmented datagrams? If so, does 
>>always setting the IP ID to zero when DF is set affect that mechanism?
> 
> 
> Only the IDs in packets with DF clear matter.

I thought the ID's even in non-fragmented datagrams gave an idea of how 
many IP datagrams had been sent along, and so an idea of how "unlikely" 
it was that a datagram with holes could be reassembled?

rick jones

  reply	other threads:[~2006-06-21  0:36 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-06-20 23:44 DF, IP ID always 0 and the reassembly protections Rick Jones
2006-06-21  0:19 ` David Miller
2006-06-21  0:35   ` Rick Jones [this message]
2006-06-21  0:38     ` akepner
2006-06-21  0:43     ` David Miller

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