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Link 2 computers by wifi with httpd allows only one way trafic
I have a small problem, I'm trying to connect two computers directly creating in one of them an AP using hostapd.
I more or less followed this: https://www.linux.com/learn/tutorials/442417-create-a-secure-linux-based-wireless-access-point
I've managed to create my AP without trouble and connected my other computer to it, but they cannot ping each other.
At first I thought it was a problem assigning IP's, so I decided to use static IP so I don't have to use a dhcp sever.
My client is 192.168.128.100 with netmask 255.255.255.0 and my AP is 192.168.128.1 with the same netmask.
I configurated them using
ifconfig wlan0 129.168.127.XXX netmask 255.255.255.0
So I tcpdumped both connections to see what was going on and ping'ed.
If I ping from my AP to the other computer:
ping -I wlan0 192.168.128.100
I get this in my AP's tcpdump (using tdpdump -i wlan0):
ARP, Request who-has 192.168.128.100 tell 192.168.128.1, length 28
Nothing else, no reply nor anything.
But, in my client's tcpdump I get:
ARP, Reply 192.168.128.100 is-at XX:XX:XX:XX:XX:XX (oui Unknown), length 28
So my AP is not receiving the reply but my client receives the ping request.
If I do it the other way (Ping from the client to the AP) the client tcpdump shows that it is trying to send the ARP request, but the AP does not log anything at all.
I'm confused. I don't really know much about networking but I feel that something odd happens here. For example, the AP does receive some data because I can connect both computers and hostapd shows that the authentication is correct.
My AP is OpenSuse 11.4 and the client right now is BackTrack linux, but later I plan to use a debian and a windows computer as clients.
Also, I've been using linux for a long time, but with my wifi I've always used some kind of GUI like kdenetworkmanager so I don't really know how to do everything properly with the console, and maybe I'm skipping something important.
I stopped my firewall in the AP just in case.
Thank you very much in advance!