Dynamic Defense; Change Password; Table 15: Firewall Dynamic Defense - Grandstream Networks UCM6102 User Manual

number, rule name, action, protocol, type, source, destination and operation. Users can click on
the rule, or select to delete the rule.

DYNAMIC DEFENSE

The UCM61xx supports firewall dynamic defense that can blacklist hosts dynamically. It monitors the traffic
coming into the UCM61xx and helps prevent massive connection attempts or brute force attacks to the
device. The blacklist can be created and updated by the UCM61xx firewall, which will then be displayed in
the web page. Please refer to the following table for dynamic defense options on UCM61xx.
Dynamic Defense
Enable
Periodical Time
Blacklist Update
Interval
Connection
Threshold
Dynamic Defense
Whitelist

CHANGE PASSWORD

After login the Web GUI for the first time, it is highly recommended for users to change the default password
"admin" to a more complicated password for security purpose. Follow the steps below to change the Web
GUI access password.
•
Go to Web GUI->Settings->Change Password page;
•
Enter the old password first;
•
Enter the new password and retype the new password to confirm. The new password field has to be at
least 5 characters;
•
Click on "Save" and the user will be logged out;
Firmware Version 1.0.1.22

Table 15: Firewall Dynamic Defense

Enable dynamic defense on UCM61xx firewall.
Configure the dynamic defense periodic time interval (in minutes). If the
number of TCP connections from a host exceeds the connection threshold
within this period, this host will be added into Blacklist. The valid value is
between 1 to 59 when dynamic defense is turned on.
Configure the blacklist update time interval (in seconds). The default setting is
120 seconds.
Configure the connection threshold. Once the number of connections from
the same host reaches the threshold, it will be added into the blacklist.
Configure the dynamic defense whitelist.
UCM6102/6104/6108/6116 USER MANUAL
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