Re: Extending a /64

[Tony Whyman <[e-mail]>]

This discussion seems to have gone off in the wrong direction. There are 
no ICAO applications that foresee aircraft to aircraft communication 
using datalink. The underlying set of applications is:

1. Controller to Pilot Datalink Communication (CPDLC) - the name says it all

2. Automatic Dependent Surveillance (ADS) - allows an ATS Provider to 
monitor an aircraft's position and intent.

3. Flight Information Services (FIS) - allows a pilot to pull 
information (e.g. on runway conditions).

TCAS also exists as a collision avoidance system and this does use 
air-to-air communication. However, this is a rider on the Mode S 
surveillance radar and is not IP based.

On 16/11/2020 14:30, Philip Homburg wrote:
> However, this seems to be a case of doing things at the wrong level. If aircaft
> use IPv6 to communicate then obvious they need unique IPv6 addresses. However,
> each plane only needs to know its own address. Any time a plane communicates
> with an unknown plane, they can exchange higher level identities.