Does an AirPort access point as bridge allow communication between Macs? I am planning to make this network :

  ⎡ Internet modem ⎤      ⎡    AirPort     ⎤ &lt;--&gt; [ PC ]     
  ⎢       &amp;        ⎥ &lt;--&gt; ⎢  access point  ⎥                 
  ⎢     router     ⎥      ⎢   as bridge    ⎥ &lt;⋅⋅&gt; [ Mac 1 ]  
  ⎣   (Freebox)    ⎦      ⎣ (Time Capsule) ⎦ &lt;⋅⋅&gt; [ Mac 2 ]  


The AirPort (wi-fi) access point will be connected to the router in (gigabit) Ethernet.

I am interested in the wi-fi communications between the Macs.

Let’s say I send a big file from Mac 1 to Mac 2.

Alas, the Macs have to send and receive the waves through the access point.

Is this long enough, or do the communications have to go through the router too ?
The data will be sent through the Time Capsule, but not through your Freebox.

Mac 1 will attempt to send a file to Mac 2 by sending it to the Time Capsule where it is directed to to Mac 2. The data won't go through the Freebox unless an internet connection is required for this data to be sent.