Questions from green hand

[Jan Ceuleers]

Canticle wrote:
> 1. What is the relationship between WPA supplication and Hostapd.
 > Could Hostapd configure as a station without wpa supplication?

No. Hostapd implements the AP side, wpa_supplicant implements the 
station side.

> 2. When configuring an AP with hostapd, if there is another ethernet
 > interface beside the wireless interface, does the eth0 have its own 
IP address?

Your choice. You can implement a bridging AP or a routing AP. I've gone 
for routing.

> 3. When changing the configuration of hostapd or WPA supplication,
 > do I have to kill/stop the deamon, rebuild the configuration files,
 > then start again? If I do the configuration in a process such as
 > another C program, what a big task! Any example or script?

If your distribution has a hostapd package then that typically comes 
with infrastructure to accomplish this. In my case I edit the hostapd 
configuration and when I'm ready I restart the daemon using the 
/etc/init.d/hostapd script (Debian-based distribution).

I don't use wpa_supplicant as all of my clients are Windows-based. But I 
understand that Network Manager may be what you're after. I suggest 
Googling.

KR, Jan