On 14/05/2016 04:02, Lorenzo Colitti wrote: > On Fri, May 13, 2016 at 3:27 PM, Mikael Abrahamsson <[email protected]> > wrote: > >> My guess is that any device which sees this, will install default IPv6 >> route but will only have link local addresses on the interface, thus there >> is no source address to use to send packets to the world outside the link. >> > > You're forgetting that the device might have an an IPv6 address on the > cellular interface, and an OS that uses the weak host model like Linux is > perfectly happy to use the cellular interface's IPv6 address to send > packets on the wifi interface.
Ouch. Yes, that's what we are incidentally trying to fix with https://tools.ietf.org/html/draft-ietf-6man-multi-homed-host but it will be a while before that becomes widespread. Brian
