Re: [v6ops] out-of-focus: why DHCPv6 breaks Android computers?

Alexandre Petrescu <alexandre.petrescu@gmail.com> Tue, 29 October 2019 10:39 UTC

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From: Alexandre Petrescu <alexandre.petrescu@gmail.com>
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Subject: Re: [v6ops] out-of-focus: why DHCPv6 breaks Android computers?
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Le 28/10/2019 à 11:35, JORDI PALET MARTINEZ a écrit :
> By the way, I’m not saying that it is correct to “disable” SLAAC if you 
> enable DHCPv6, but I’ve seen some “bad designed” products that do that …

Well, depends what we call SLAAC.

I agree with you some bad designed products do that.

In this particular case I think the CPE sends the proper RAs with the 
right (to me) A, M and Lifetime flags such that someone using DHCPv6 can 
do it.

Alex

> 
> Regards,
> 
> Jordi
> 
> @jordipalet
> 
> El 28/10/19 11:34, "v6ops en nombre de JORDI PALET MARTINEZ" 
> <v6ops-bounces@ietf.org <mailto:v6ops-bounces@ietf.org> en nombre de 
> jordi.palet=40consulintel.es@dmarc.ietf.org 
> <mailto:jordi.palet=40consulintel.es@dmarc.ietf.org>> escribió:
> 
> It may be that if you enable DHCPv6, SLAAC is disabled, and then Android 
> will not work (as they don’t support DHCPv6)? So probably the “message” 
> is not correct …
> 
> Regards,
> 
> Jordi
> 
> @jordipalet
> 
> El 28/10/19 11:30, "v6ops en nombre de Eric Vyncke (evyncke)" 
> <v6ops-bounces@ietf.org <mailto:v6ops-bounces@ietf.org> en nombre de 
> evyncke@cisco.com <mailto:evyncke@cisco.com>> escribió:
> 
> Alex,
> 
> Most probably a bug in your Free CPE (that appears to be over-zealous)
> 
> -éric
> 
> *From: *v6ops <v6ops-bounces@ietf.org>; on behalf of Alexandre Petrescu 
> <alexandre.petrescu@gmail.com>;
> *Date: *Monday, 28 October 2019 at 10:47
> *To: *"v6ops@ietf.org"; <v6ops@ietf.org>;
> *Subject: *[v6ops] out-of-focus: why DHCPv6 breaks Android computers?
> 
> This message is out of focus of current discussions.
> 
> Why the presence of a DHCPv6 server breaks Android computers?
> 
> On my CPE at home, of ISP Free, I noticed recently this message: 'Watch 
> out: if you activate the DHCPv6 server, certain Android computers are at 
> risk of loosing their IPv6 connection'.
> 
> Why and how the presence of a DHCPv6 server on the CPE breaks Android 
> computers?
> 
> I would like to try this DHCPv6 server to connect my Windows 2-in-1 
> computer to work at home, but I dont want to break the other Android 
> tablet that shows the weather report.
> 
> Alex
> 
> cid:image001.png@01D58D82.F3472A90
> 
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