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Figure 17: asterisk service fail2ban setting – Grandstream UCM6100 Security Manual User Manual

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UCM6100 Security Manual Page 22 of 23

Figure 17: Asterisk Service Fail2Ban setting

If Fail2Ban is enabled

under “Global Settings”, user must select “Asterisk Service” under “Local Settings”

in order for it to take effect. Currently only 5060 (UCP Port) is supported for

“Protocol”. Users can then

define the value for “MaxRetry” which will override the "MaxRetry" value under "Global Settings". “Max
Retry” specifies the number of authentication failures during "Max Retry Duration" before the host is

banned and the default value is 5.