On Wednesday 26 August 2015 18:31:34 ??? wrote: > seems to be IPv6 operator's decision depending on their network > configuration for instance; global unique prfix or site local or even link > local...
Hi Daniel All IPv6-capable devices have one IPv6 link-local address per interface. That's mandatory if IPv6 is supported. IPv6-capable devices may have one or more global addresses, initialised by either stateless auto configuration (SLAAC) and/or DHCPv6 or even other means. My first point is that if the device has global addresses, we should use them. If all it has is link-local, we use that. The second point is a requirement for Thread and other 802.15.4 mesh networks: we need to use realm-local instead of link-local in order to reach everyone in the network. -- Thiago Macieira - thiago.macieira (AT) intel.com Software Architect - Intel Open Source Technology Center
