Checkpoint 156-315.81 Exam With Confidence Using Practice Dumps

 The order of NAT priorities is determined by the type of NAT rule that is applied to the traffic. There are three types of NAT rules in Check Point: static NAT, IP pool NAT, and hide NAT12.

• Static NAT: This type of NAT rule maps a single IP address to another single IP address. It is usually used to allow external hosts to access internal servers or devices. Static NAT has the highest priority among the NAT rules, and it is applied before the security policy is enforced12.
• IP pool NAT: This type of NAT rule maps a range of IP addresses to another range of IP addresses. It is usually used to balance the load among multiple servers or devices. IP pool NAT has the second highest priority among the NAT rules, and it is applied after the security policy is enforced12.
• Hide NAT: This type of NAT rule hides a group of IP addresses behind a single IP address or an interface. It is usually used to allow internal hosts to access external resources. Hide NAT has the lowest priority among the NAT rules, and it is applied after the security policy is enforced12.

Therefore, the order of NAT priorities is: static NAT, IP pool NAT, hide NAT.

References: 1: Check Point R81 Security Administration Guide - Check Point Software, page 209 2: Check Point R81 Security Engineering Guide - Check Point Software, page 163

The command to show SecureXL status is fwaccel stat. This command displays information about SecureXL acceleration, such as the number of accelerated and non-accelerated connections, the reason for non-acceleration, and the SecureXL device name and mode. The other commands are either invalid or show different statistics.

The valid SecureXL paths in R81.20 are F2F (Slow path), Accelerated Path, Medium Path and F2V1. SecureXL is a technology that accelerates the performance of the Security Gateway by offloading CPU-intensive operations to the SecureXL device2. SecureXL uses different paths to process packets, depending on the type and state of the connection3. The SecureXL paths are3:

• F2F (Slow path): This path handles packets that require a full inspection by the Firewall kernel. It is the slowest path, but it supports all features and blades. Examples of packets that use this path are packets that belong to a new connection, packets that match a rule with UTM blades, or packets that require address translation.
• Accelerated Path: This path handles packets that belong to an established connection that does not require any further inspection by the Firewall kernel. It is the fastest path, but it supports only a limited set of features and blades. Examples of packets that use this path are packets that match an accept rule with no UTM blades, or packets that match a rule with SecureXL acceleration enabled.
• Medium Path: This path handles packets that belong to an established connection that requires some inspection by the Firewall kernel, but not a full inspection. It is faster than the F2F path, but slower than the Accelerated path. It supports more features and blades than the Accelerated path, but less than the F2F path. Examples of packets that use this path are packets that match a rule with IPS or Anti-Bot blades, or packets that require NAT templates.
• F2V: This path handles packets that are encapsulated or decapsulated by the VPN kernel. It is faster than the F2F path, but slower than the Accelerated path. It supports VPN features such as encryption, decryption, encapsulation, and decapsulation. References: R81.x Security Gateway Architecture (Logical Packet Flow) - Check Point CheckMates, SecureXL Mechanism in R80.10 and above - Check Point Software, SecureXL - Check Point Software