Samsung phones block WiFi IPv6 when sleeping, delayed notifications

[Doug Barton]

On 6/12/15 1:11 AM, Lorenzo Colitti wrote:
 >> Ole said:
>>     do we agree that a host that wakes up and has expired its last
>>     default router should restart router discovery?

In my mind this makes a lot of sense.

> That's not necessary. For things to work well a host needs to be able to
> maintain connectivity even when asleep. So it needs to be able to
> receive unicast packets,

Agreed

> and it needs to process RAs

The problem is that due to the design of the protocol "processing RAs" 
(Note, you did not specify unicast or multicast) is a known battery 
drainer. So it's awesome to say that wireless devices operating on a 
battery should simply stick to the protocol that was designed 15+ years 
ago when it was almost universally true that every networked device was 
connected to power and a LAN cable. But the world has moved on.

> (e.g., so it can
> know that it has lost connectivity when it receives an RA with a default
> lifetime of 0).

The device should know if it loses connectivity if it actually, you 
know, loses connectivity. If the router hasn't expired yet it should be 
able to use it. The scenario you describe should be incredibly rare.

Doug


-- 
I am conducting an experiment in the efficacy of PGP/MIME signatures. 
This message should be signed. If it is not, or the signature does not 
validate, please let me know how you received this message (direct, or 
to a list) and the mail software you use. Thanks!

-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 473 bytes
Desc: OpenPGP digital signature
Url : http://lists.cluenet.de/pipermail/ipv6-ops/attachments/20150613/76d73420/attachment.bin