5airmonng

root@root:airmon-ng start wlanO -c 1

Found 2 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

2639    dhclient3

2640    dhclient3

Process with PID 2639 (dhclient3) is running on interface wlanO

Interface    Chipset    Driver

wlanO    Unknown    rt2800pci - [phyO]/usr/local/sbin/airmon-ng: linę 631:

[: -c: integer expression expected

(monitor modę enabled on monO)