I've been wondering about this scenario for a while but I cannot fully understand how it works.
Say I am sitting in a cafe on my laptop with wireshark, the cafe has an open WiFi connection. Is it possible for my laptop to become a wireless access point (i will call it something similar to the cafe router) but then redirect all traffic going through my laptop to the actual cafe router as my router is not connected to the internet.
This may help:
Normal route: users ---> Cafe AP ---> Internet
What I want to do: users ---> Fake AP ---> Cafe AP ----> Internet
The part I am confused on is how to make my fake AP redirect all traffic to the cafe AP.
Thinking about it, is it possible to connect to the Cafe AP and simply sniff in promiscuous mode to receive packets from all who are connected?