Subject: Re: [PATCH net-next-2.6] ipv6: make fragment identifications less predictable

From: Fernando Gont <[email-masked]>
Date: Wed, 20 Jul 2011 22:32:18 -0300

On 07/20/2011 07:27 AM, Eric Dumazet wrote:
> Le mercredi 20 juillet 2011 à 10:25 +0200, Eric Dumazet a écrit :
> 
>> Please hold on, I'll make a different patch series to ease stable teams
>> job. It appears inetpeer & ipv6 are really not an option for old
>> kernels.
>>
>> Common patch for all kernels :
>> 1) Fix the problem without inetpeer help
>> --- 
>> Patches for next kernels
>> 2) random split as suggested by Matt Mackal
>> 3) Use inetpeer cache to scale identification generation
> 
> Here is the first patch, applicable on net-2.6 / linux-2.6 and stable
> kernels.

Does it make sense to go in this direction rather than simply randomize
the IPv6 Fragment Identification?

Keep in mind that IPv6 routers don't perform fragmentation, that that
the IPv6 identification is 32-bits long.

Thanks,
-- 
Fernando Gont
e-mail: [email-masked] || [email-masked]
PGP Fingerprint: 7809 84F5 322E 45C7 F1C9 3945 96EE A9EF D076 FFF1