Re: SV: Samsung phones block WiFi IPv6 when sleeping, delayed notifications

2015-06-19 Thread Erik Nordmark
[Catching up on email] Benedikt, Note that https://tools.ietf.org/html/draft-ietf-6man-rs-refresh-00 is an attempt at addressing refresh without a multicast RA every 3 seconds, by only having the host do this refresh when it knows that the router doesn't default to multicasting solicited

Re: SV: Samsung phones block WiFi IPv6 when sleeping, delayed notifications

2015-06-13 Thread Benedikt Stockebrand
Hi Lorenzo and list, Lorenzo Colitti lore...@google.com writes: On Thu, Jun 11, 2015 at 6:56 PM, Benedikt Stockebrand b...@stepladder-it.com wrote: they should at least send an RS when they wake up and ensure their configuration is still up to date. That sounds like a bad

Re: SV: Samsung phones block WiFi IPv6 when sleeping, delayed notifications

2015-06-11 Thread Benedikt Stockebrand
Hi folks, I can't give you a decisive reference for where it's defined, but the default maximum interval is 600 seconds and the minimum interval is one third of that (200 seconds, not 180). The 1800s value may be a misinterpretation of the router lifetime field in the RAs, which has a default

Re: SV: Samsung phones block WiFi IPv6 when sleeping, delayed notifications

2015-06-11 Thread Ignatios Souvatzis
Hi, On Thu, Jun 11, 2015 at 09:56:45AM +, Benedikt Stockebrand wrote: As far as tweaking these values to deal with some sleepy devices is concerned: I'd personally prefer to consider these devices broken; they should at least send an RS when they wake up and ensure their configuration is

Re: SV: Samsung phones block WiFi IPv6 when sleeping, delayed notifications

2015-06-11 Thread Eric Vyncke (evyncke)
Please read some IETF draft related to NDP/multicast/WiFi issues (Lorenzo is very active there). Multicast RA are not really needed anyway, some 'high market' (see my email address) AP have dozens of tricks to reply to RS with a UNIcast RA, and trying to reduce the amount of NDP mcast. If you

SV: Samsung phones block WiFi IPv6 when sleeping, delayed notifications

2015-06-10 Thread erik.taraldsen
I see that. I don’t think the problem is confined to Samsung or that it can be completed solved in isolation from fixing wireless AP router behaviour. At the edge of the WiFi network I also see the IPv6 connectivity dropping while IPv4 stays up. I’ve a ZyXEL home router that sends periodic