Checkpoint 156-315.81 Exam With Confidence Using Practice Dumps

After trust has been established between the Check Point components, the Security Gateway IP address cannot be changed without re-establishing the trust. This is because the trust is based on the Secure Internal Communication (SIC) mechanism, which uses certificates to authenticate and encrypt the communication. The certificates are issued by the Internal Certificate Authority (ICA) of the Security Management Server / Domain Management Server, and contain the name and IP address of the component. Therefore, if the IP address of a component is changed, the certificate will become invalid and the trust will be lost. To restore the trust, the certificate must be renewed or reissued by the ICA12.

However, there are some exceptions to this rule. The Security Gateway name can be changed in command line without re-establishing trust, as long as the IP address remains the same. This is because the SIC mechanism does not rely on the hostname, but on the IP address and the SIC name (which is usually derived from the hostname, but can be manually changed). The Security Management Server name can be changed in SmartConsole without re-establishing trust, as long as the IP address remains the same. This is because SmartConsole uses a different mechanism to connect to the Security Management Server, which does not depend on the SIC certificate. The Security Management Server IP address can be changed without re-establishing trust, as long as some steps are followed to update the Check Point Registry file on the managed Security Gateways / Cluster Members / VSX Virtual Devices. This is because the Registry file contains the IP address of the ICA, which is used for certificate renewal. If the Registry file is not updated, then the certificate renewal will fail and the trust will be lost3.

References: 1: Check Point R81 Security Administration Guide - Check Point Software, page 162 2: Check Point R81 Security Engineering Guide - Check Point Software, page 162 3: How to renew SIC after changing IP Address of Security Management Server - Check Point Software, Solution ID: sk103356

 Updatable Objects are a Threat Cloud Service that provides network objects that represent external services, such as Office 365, AWS, GEO locations, and more. These objects are updated automatically by Check Point and do not require policy installation for the changes to take effect. Dynamic Objects are created and maintained locally by the administrator and can be used to define temporary or changing network objects, such as IP addresses, ports, or ranges. Dynamic Objects also do not require policy installation for the changes to take effect. References: Updatable Objects, Updateable Objects and NAT, R80.20 Updatable Domain Objects and CLI Commands.

In R81, the Mobile Access policy is created and modified in SmartConsole. SmartConsole is the management interface for configuring and managing various security policies, including Mobile Access policies.

References: Check Point Certified Security Expert R81 documentation and learning resources.