Ormuzd haz lo que te dije y me dices si funciona:
airmon-ng start eth0 (si no lo has hecho)
reaver-1.3 -i mon0 -b 88:03:55:xx:xx:xx -c 11 -e xxx -vv
El codifo del airmon lo tienes justo antes de tu post y da error y no me crea la interfaz mon0
wifislax ~ # airmon-ng start eth0
Found 1 processes that could cause trouble.
If airodump-ng, aireplay-ng or airtun-ng stops working after
a short period of time, you may want to kill (some of) them!
PID Name
14826 dhcpcd
Process with PID 14826 (dhcpcd) is running on interface eth0
Interface Chipset Driver
eth0 Intel 2200BG/2915ABG ipw2200 - [phy0]mon0: unknown interface: No existe el dispositivo
(monitor mode enabled on mon0)
que pasa si le das a ifconfig wlan0 up?
Me da error porque no tengo interfaz wlan0
wifislax ~ # ifconfig wlan0 up
wlan0: unknown interface: No existe el dispositivo
Te pego ifconfig -a con todos los interfaces (activados como desactivados)
wifislax ~ # ifconfig -a
eth0 Link encap:Ethernet HWaddr 00:12:F0:AA:DF:14
inet addr:192.168.0.177 Bcast:192.168.0.255 Mask:255.255.255.0
inet6 addr: fe80::212:f0ff:feaa:df14/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:138961 errors:0 dropped:14970 overruns:0 frame:0
TX packets:29071 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:69565699 (66.3 Mb) TX bytes:3864499 (3.6 Mb)
eth1 Link encap:Ethernet HWaddr 00:00:F0:79:51:07
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
Interrupt:5
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:1948 errors:0 dropped:0 overruns:0 frame:0
TX packets:1948 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:149440 (145.9 Kb) TX bytes:149440 (145.9 Kb)
Por lo que se solo es wlan0 cuando es un usb wifi, el tener la tarjeta wifi integrada me la pone en eth0