> Source: [sk105581](https://support.checkpoint.com/results/sk/sk105581)

# sk105581 - Specific UDP traffic is dropped after upgrade to R77.20 / R77.30

| Property | Value |
|----------|-------|
| Solution ID | sk105581 |
| Date Created | 2015-04-07 |
| Last Modified | 2023-03-16 |
| Technical Level | General |
| Products | Security Gateway |
| Versions | R82.10, R82, R81.20 |

## Symptoms

- Specific UDP traffic is dropped on cleanup rule after upgrade to R77.20 / R77.30 when SecureXL is enabled in IPSO 6.2.

## Cause

SecureXL creates a template for the outgoing connection, but not for the return connection. As a result, the traffic is dropped.

## Solution

[Contact Check Point Support](http://www.checkpoint.com/services/contact/index.html) to get a Hotfix for this issue.   
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](https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doGoviewsolutiondetails=&solutionid=sk92739) files from the Security Management and Security Gateways involved in the case.

**Hotfix installation instructions for Gaia/SecurePlatform/IPSO OS:**

1. Hotfix has to be installed on ***Security Gateway / each cluster member***

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

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

3. Unpack the hotfix package:

   ```
   [Expert@HostName]# cd /some_path_to_fix/
   [Expert@HostName]# tar -zxvf fw1_wrapper_HOTFIX_NAME.tgz
   ```

4. Install the hotfix:

   ```
   [Expert@HostName]# ./fw1_wrapper_HOTFIX_NAME
   ```

   **Note:** The script will stop all of Check Point services (*cpstop* ) - read the output on the screen.   

5. Reboot the machine.

---

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