ip switching from ipv4 to ipv6

[Brian E Carpenter]

On 30/04/2016 01:16, Mikael Abrahamsson wrote:
> On Fri, 29 Apr 2016, re wrote:
> 
>> but is there any explanation to the repeated changing of the ip address from ipv4 to ipv6?
> 
> https://en.wikipedia.org/wiki/Happy_Eyeballs
> 
> If network conditions change then IPv4 or IPv6 might be preferred over time. It'll usually give a little bit of head-start for
> IPv6 (depending on implementation), but if v6 is significantly worse parts of the time, then you'll see the client bouncing
> between versions.
> 

And look for the relevant browser option to switch it off. For Firefox it
seems to need network.http.fast-fallback-to-IPv4;false

   Brian