nanog mailing list archives

Re: Hotels/Airports with IPv6


From: Mel Beckman <mel () beckman org>
Date: Mon, 13 Jul 2015 15:59:52 +0000

Of course. The question is, is a highly visible public wifi network the place to hammer out problems? My customer 
decided no.

 -mel beckman

On Jul 13, 2015, at 8:54 AM, "A.L.M.Buxey () lboro ac uk" <A.L.M.Buxey () lboro ac uk> wrote:

Hi,
I've done fairly extensive testing, and IPv6 support, while pretty solid on the carrier side, is still iffy on WiFi. 
Both iOS and Android have various reliability problems with IPv6 and WiFi, mostly related to acquiring a DNS address 
or maintaining a connection while roaming. Combine that with less-than-fully-baked IPv6 on some enterprise WiFi 
platforms, and it's easy to see that deploying WiFi IPv6 today is at least a challenge, and definitely a risk. 

Android, for example, doesn't yet support DHCPv6 on WiFi (it's not needed on the carrier side, which does DNS 
intercept), and intermittently looses its unicast address on some hardware devices (notably tablets, in my 
experience). Even when android gets DHCPv6, or these hardware problems get solved, there will be several years of 
legacy devices in the field to contend with.  

we had problems with IPv4 in the early days - people still adopted it. without adoption, the bugs/issues with clients 
dont
get addressed. 

alan


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