mesh network vs broadcast/multicast question

[Alexander Larsson]

On Tue, 2007-06-26 at 11:34 -0400, Michail Bletsas wrote:
> The key point to remember in order to derive answers to these questions is 
> that our mesh network operates at layer-2
> For all practical purposes, there aren't any differences between broadcast 
> and multicast frames and every node maintains a table of recently 
> forwarded broadcast frames so that they are not broadcasted multiple 
> times.
> 
> One can limit the radious of the (layer-2) neighborhood be means of 
> controlling the Mesh TTL field.

That is a global setting though, and not something we want applications
to touch.

Is there a way for a program to figure out which of a list of ip
addresses are neighbours in the mesh (i.e. 1 hop away)?