brute-force-detect interval
Usage Guidelines
Usage Scenario
In a brute force key cracking attack, an attacker tries all possible key combinations one by one to obtain the correct password. To improve password security, enable defense against brute force key cracking to prolong the time used to crack passwords.
An AP checks whether the number of key negotiation failures during WPA/WPA2-PSK, WAPI-PSK, or WEP-Share-Key authentication of a user exceeds the threshold configured using the brute-force-detect threshold command. If so, the AP considers that the user is using the brute force method to crack the password and reports an alarm to the AC. If the dynamic blacklist function is enabled, the AP adds the user to the dynamic blacklist and discards all the packets from the user until the dynamic blacklist entry ages out.
Follow-up Procedure
Run the dynamic-blacklist enable command to enable the dynamic blacklist function.
Example
# Set the interval for brute force key cracking detection to 100 seconds.
<AC6605> system-view [AC6605] wlan [AC6605-wlan-view] ap-group name office [AC6605-wlan-ap-group-office] radio 0 [AC6605-wlan-group-radio-office/0] wids attack detect enable wpa-psk [AC6605-wlan-group-radio-office/0] quit [AC6605-wlan-ap-group-office] quit [AC6605-wlan-view] wids-profile name huawei [AC6605-wlan-wids-prof-huawei] brute-force-detect interval 100
