topic Re: How to Check Point maintaining connection for GRE traffic in Firewall and Security Management https://community.checkpoint.com/t5/Firewall-and-Security-Management/How-to-Check-Point-maintaining-connection-for-GRE-traffic/m-p/99606#M25355 <P>Hi amdhim0004,</P><P>can you please tell me your solution? I have a similar issue with GRE at an R80.30 Cluster.</P><P>Thanks!</P> Tue, 20 Oct 2020 14:47:36 GMT DT-ISP-DD 2020-10-20T14:47:36Z How to Check Point maintaining connection for GRE traffic https://community.checkpoint.com/t5/Firewall-and-Security-Management/How-to-Check-Point-maintaining-connection-for-GRE-traffic/m-p/73186#M25351 <P>Hi,</P><P>Can anyone please help to understand how Checkpoint firewall,&nbsp; GRE through traffic handling.</P><P>I am getting an issue.&nbsp; GRE is configured on both end route and in between i have CheckPoint firewall.When a fail-over (primary to secondary) occurs, GRE is stop working and then i need to request with network person to bounce the Router GRE terminated physical port. I need to understand CheckPoint GRE&nbsp;through traffic handling, and how it maintain in connection table, i tried to find documents but no luck.</P><P>Route ---&gt;CheckPoint ---&gt; Router&nbsp;&nbsp;</P><P>&nbsp;</P><P>&nbsp;</P> Fri, 24 Jan 2020 02:28:30 GMT https://community.checkpoint.com/t5/Firewall-and-Security-Management/How-to-Check-Point-maintaining-connection-for-GRE-traffic/m-p/73186#M25351 mahesh027cse1 2020-01-24T02:28:30Z Re: How to Check Point maintaining connection for GRE traffic https://community.checkpoint.com/t5/Firewall-and-Security-Management/How-to-Check-Point-maintaining-connection-for-GRE-traffic/m-p/73257#M25352 <P>Is the connection subject to NAT and does the issue occur only on Failover or also during policy installation?</P> <P>Service object:</P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="gre.png" style="width: 607px;"><img src="https://community.checkpoint.com/t5/image/serverpage/image-id/4178iB72A5AFA1130C06D/image-size/large?v=v2&amp;px=999" role="button" title="gre.png" alt="gre.png" /></span><BR /><BR /><BR /></P> Fri, 24 Jan 2020 12:49:51 GMT https://community.checkpoint.com/t5/Firewall-and-Security-Management/How-to-Check-Point-maintaining-connection-for-GRE-traffic/m-p/73257#M25352 Chris_Atkinson 2020-01-24T12:49:51Z Re: How to Check Point maintaining connection for GRE traffic https://community.checkpoint.com/t5/Firewall-and-Security-Management/How-to-Check-Point-maintaining-connection-for-GRE-traffic/m-p/73729#M25353 <P>There is no NAT for GRE traffic. But when we did fail-over (Primary to secondary), We need to reset the GRE interface to establish connection.&nbsp; Can you please help to understand how Check Point maintaining state-full fail-over for GRE through traffic.&nbsp;&nbsp;</P><P>"Synchronize connection if State Synchronization is enabled on the cluster" is by default enabled for the GRE object.</P> Thu, 30 Jan 2020 05:58:47 GMT https://community.checkpoint.com/t5/Firewall-and-Security-Management/How-to-Check-Point-maintaining-connection-for-GRE-traffic/m-p/73729#M25353 mahesh027cse1 2020-01-30T05:58:47Z Re: How to Check Point maintaining connection for GRE traffic https://community.checkpoint.com/t5/Firewall-and-Security-Management/How-to-Check-Point-maintaining-connection-for-GRE-traffic/m-p/93236#M25354 <P>Hi&nbsp;<a href="https://community.checkpoint.com/t5/user/viewprofilepage/user-id/37430">@mahesh027cse1</a>&nbsp;</P><P>I know the solution.</P><P>But first can you please tell me if you have Primary/Secondary two GREs setup or only Single Tunnel?</P><P>Thanks&nbsp;</P><P>Amandeep</P> Tue, 04 Aug 2020 07:09:28 GMT https://community.checkpoint.com/t5/Firewall-and-Security-Management/How-to-Check-Point-maintaining-connection-for-GRE-traffic/m-p/93236#M25354 amdhim0004 2020-08-04T07:09:28Z Re: How to Check Point maintaining connection for GRE traffic https://community.checkpoint.com/t5/Firewall-and-Security-Management/How-to-Check-Point-maintaining-connection-for-GRE-traffic/m-p/99606#M25355 <P>Hi amdhim0004,</P><P>can you please tell me your solution? I have a similar issue with GRE at an R80.30 Cluster.</P><P>Thanks!</P> Tue, 20 Oct 2020 14:47:36 GMT https://community.checkpoint.com/t5/Firewall-and-Security-Management/How-to-Check-Point-maintaining-connection-for-GRE-traffic/m-p/99606#M25355 DT-ISP-DD 2020-10-20T14:47:36Z Re: How to Check Point maintaining connection for GRE traffic https://community.checkpoint.com/t5/Firewall-and-Security-Management/How-to-Check-Point-maintaining-connection-for-GRE-traffic/m-p/152221#M25356 <P>Can you tell us what your solution is?</P> Sun, 03 Jul 2022 12:43:55 GMT https://community.checkpoint.com/t5/Firewall-and-Security-Management/How-to-Check-Point-maintaining-connection-for-GRE-traffic/m-p/152221#M25356 Kevin_Taverner 2022-07-03T12:43:55Z