How to know the ip address of users of the wireless network which I am connected to.
NOTE: the wireless network is generated in all the building by its owner; so I can't look for
The router configuration.
Thanks.

Why?

You can find all the IP addresses in use and their MAC entries if they respond to internal PINGS. You may be able to map them back to a machine name. You can easily find yours with ipconfig /all.

The router has the MAC address/IP matches, but only if it can list users connected.