Fail2ban
Fail2Ban feature on the UCM6200 provides intrusion detection and prevention for authentication errors in SIP
REGISTER, INVITE and SUBSCRIBE. Once the entry is detected within "Max Retry Duration", the UCM6200
will act to forbid the host for certain period as defined in "Banned Duration". This feature helps prevent SIP brute
force attacks to the PBX system.
Figure 30: Fail2ban Settings