AnsweredAssumed Answered

Change IP Address Management on Azure in FrontEnd Network

Question asked by ETEK International on Dec 26, 2018
Latest reply on Dec 26, 2018 by Dameon Welch-Abernathy


I have a Check Point Firewall on Microsoft Azure. I can manage the firewall throught Public IP Address. However, I note, after firewall deployment, that the Private IP Address associated to the IP public address had a wrong subnet mask.


I Changed the subnet mask on Gaia and firewall objects and the rules were installed successfully. However, when the subnet mask is changed on Azure, I lose connection to the firewall management from Internet.


To ilustrate best this scenario, I explain it with an example:


The eth0 interface have a Private IP Address mask

The eth0:1 subinterface have a Public IP Address


When I change eth0 interface to Private IP Address mask on the firewall and install rules, the firewall acts successfully.


When I update the subnet mask on Azure I lose connection to manage the firewall and I need to return to the before subnet mask.


In this moment the subnet mask on the firewall is and the subnet mask on azure is, but I need configure the same subnet mask on both.


Any ideas about how to solve this?


Thaks for your help.