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Re: [v4tov6transition] Comment on draft-despres-softwire-6a44-01.txt

Rémi Després <remi.despres@free.fr> Thu, 21 October 2010 10:31 UTC

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From: Rémi Després <remi.despres@free.fr>
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Date: Thu, 21 Oct 2010 12:33:25 +0200
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To: Dong Zhang <zhangdong_rh@huaweisymantec.com>
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Subject: Re: [v4tov6transition] Comment on draft-despres-softwire-6a44-01.txt
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Le 21 oct. 2010 à 10:42, Dong Zhang a écrit :

>> ...
>> Why? When I have to restart my IPv4-only ADSL box, I lose all
>> sessions, and for all I know I get a different IPv4 address.
>> So why do I care if 6a44 loses state too?
>> 
>> Certainly the IPv6 client host must be forced to restart
>> the 6a44 process when this happens. We do need a method of
>> forcing that.
> Maybe after the CPE box restarts, it could send an announcement message to arise the 6a44 hosts restart the IPv6 address application process.


Not that the host, with the current specification, will remain at most 29 s without getting its new IPv6 address after a CPE reset:
- It refreshes its CPE port mapping at least every 29 s.
- The 6a44-S, if it notices an inconsistency between the IPv6 source address and IPv4 A+P, returns a updated address indication to the right A+P.

Regards,
RD

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