> Source: [sk111888](https://support.checkpoint.com/results/sk/sk111888)

# sk111888 - Cluster member might crash when processing a NAT connection, if SecureXL is not enabled on all cluster members

| Property | Value |
|----------|-------|
| Solution ID | sk111888 |
| Date Created | 2016-06-09 |
| Last Modified | 2023-03-22 |
| Technical Level | General |
| Products | Security Gateway |
| Versions | R82.10, R82, R81.20 |
| OS | Gaia |

## Symptoms

- Cluster member might crash in the following scenario:

* This cluster member became Active
* SecureXL is enabled on this cluster member
* SecureXL is *not* enabled on *all* members in the cluster
* NAT rules exist in the policy

## Cause

Since SecureXL is *not* enabled on *all* members in the cluster, FireWall and SecureXL tables of which NAT ports were allocated to which cluster member are not synchronized. As a result, FireWall created and offloaded a NAT connection using a NAT port that is not within the SecureXL range of allocated NAT ports. This caused the cluster member to crash.

## Solution

This problem was fixed. The fix is included in:

* [Check Point R80.10](http://supportcontent.checkpoint.com/solutions?id=sk111841)
* [Jumbo Hotfix Accumulator for R77.30](https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doGoviewsolutiondetails=&solutionid=sk106162) - since *Take_189*

Check Point recommends to always [upgrade to the most recent version](https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doShowproductpage&productTab=overview&product=184)

**Code was improved:** A check was added that the NAT port in the offloaded NAT connection is inside the SecureXL range of allocated NAT ports.

For **other [supported](http://www.checkpoint.com/support-services/support-life-cycle-policy/index.html) versions** , [Check Point Support](http://www.checkpoint.com/support-services/contact-support/index.html) can supply a **Hotfix**.

A Support Engineer will make sure the Hotfix is compatible with your environment before providing the Hotfix.  
For faster resolution and verification, please collect [CPinfo files](https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doGoviewsolutiondetails=&solutionid=sk92739) from the Security Management Server and Cluster Members involved in the case.

**Hotfix installation instructions:**

1. Hotfix has to be installed on ***Security Gateway / each cluster member running on Gaia/SecurePlatform/XOS/IPSO OS***.

   **Note:** In cluster environment, this procedure must be performed on *all* members of the cluster.
2. Procedure:

   * On Gaia OS - using CPUSE:

     Refer to [sk92449: CPUSE - Gaia Software Updates (including Gaia Software Updates Agent)](https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doGoviewsolutiondetails=&solutionid=sk92449#How to work with CPUSE):
     * Section "[(4-A-c)](https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doGoviewsolutiondetails=&solutionid=sk92449#How to work with CPUSE - How to download and import a CPUSE package - Import instructions for Offline procedure - Gaia Portal)" / "[(4-A-d)](https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doGoviewsolutiondetails=&solutionid=sk92449#How to work with CPUSE - How to download and import a CPUSE package - Import instructions for Offline procedure - Gaia Clish)" - refer to import instructions for *Offline procedure*
     * Section "[(4-B-a)](https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doGoviewsolutiondetails=&solutionid=sk92449#How to work with CPUSE - How to install a CPUSE package - Installing a Hotfix package / Minor Version package)" - refer to installation instructions for *Hotfixes*

     **Note:** Reboot is required.
   * On SecurePlatform/XOS/IPSO OS - using Legacy CLI:

     1. Transfer the hotfix package to the machine (into some directory, e.g., */some_path_to_fix/*).

     2. Unpack and install the hotfix package:

        ***\[Expert@HostName\]# cd /some_path_to_fix/***   
        ***\[Expert@HostName\]# tar -zxvf sim_\<HOTFIX_NAME\>.tgz***   
        ***\[Expert@HostName\]# ./sim_\<HOTFIX_NAME\>***
        **Note:** The script will stop all of Check Point services (*cpstop*) - read the output on the screen.
     3. Reboot the machine.

---

# Agent Instructions

This content is from the Check Point Support Center (https://support.checkpoint.com), the official knowledge base for Check Point cybersecurity products.

## Navigating This Knowledge Base

- **Complete index**: [llms.txt](https://support.checkpoint.com/llms.txt)
- **All SK articles**: [SecureKnowledge Sitemap](https://support.checkpoint.com/sitemaps/secureknowledge-sitemap-index.xml)
- **SK article URL pattern**: `https://support.checkpoint.com/results/sk/{skId}`
- **Markdown responses**: AI bot User-Agents automatically receive `text/markdown` content