full invisibility while allowing all outbound traffic. In Emergency mode, CPF will block all inbound access requests i.e. If the attacking IP address is spoofed or there are so many attackers, it will switch to a mode called “Emergency Mode” for a period of time which can be modified at Security-Advanced->“Time to stay in emergency mode”(default 2 minutes).IP address is not spoofed, which is usually a case for TCP/UDP port scans, CPF will stop the attacker’s all access rights to the host for a specified period of time which is defined at Security->Advanced->“Time to block a suspicious host” parameter(default 5 minutes), while still allowing your host to access the attacker’s host. If the attacker’s IP address is detected correctly i.e.Upon facing such a severe attack as SYN/UDP/Ping Flood or TCP/UDP Port Scan, CPF is going to take the following actions: In case of a severe inbound attack such as a TCP/UDP port scan, ICMP FLood, SYN Flood etc, CPF is going to create a high severity log with the details of the attack.From Application Monitor, Network Monitor etc. You can right click on the Logs grid and customize types of events you prefer to be logged.“BLOCK IP IN FROM IP ANY TO IP ANY WHERE IPPROTO IS ANY” will show you what CPF blocks. For example, for default network rules profile, activating this option for the Rule ID = 1 i.e.
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