On 13 June 2015 at 09:11, Mikael Abrahamsson <swmike@swm.pp.se> wrote:
On Fri, 12 Jun 2015, Baldur Norddahl wrote:
Can someone explain to me how Android uses SLAAC to implement tethering?
https://tools.ietf.org/html/rfc7278
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I have not read it in detail, but correct me if I am wrong, that stuff will NOT work while the phone is on wifi. Quote: " As [RFC6459 <https://tools.ietf.org/html/rfc6459>] describes, the 3GPP-network-assigned /64 is completely dedicated to the UE and the gateway does not consume any of the /64 addresses. The gateway routes the entire /64 to the UE and does not perform ND or Neighbor Unreachability Detection (NUD) [RFC4861 <https://tools.ietf.org/html/rfc4861>]. Communication between the UE and the gateway is only done using link-local addresses and the link is point-to-point. " It is like a DHCP-PD of a /64 to the phone. I fail to see what relevance that has to a phone supporting DHCP on a Wifi or LAN link. Except of course that it should make it trivial for Android to support DHCP-PD. They already have a system that can consume a /64 from a prefix delegation and use that for both applications on the phone and for tethering (does tethering while on Wifi make sense? - it is possible using bluetooth to a laptop). Regards, Baldur