> Source: [sk181564](https://support.checkpoint.com/results/sk/sk181564)

# sk181564 - Differences using the 'ethtool' command with SecureXL Kernel Mode (KPPAK) and User Mode (UPPAK) modes

| Property | Value |
|----------|-------|
| Solution ID | sk181564 |
| Date Created | 2023-10-17 |
| Last Modified | 2026-06-21 |
| Technical Level | Advanced |
| Products | Security Gateway |
| Versions | R82.10, R82, R81.20, R81.10 (EOS) |
| OS | Gaia |
| Platform | LightSpeed QLS, LightSpeed MLS, 19000, 29000 |

## Symptoms

- * Differences in the output of the "ethtool" command when SecureXL works in the User Space (UPPAK) mode and in the Kernel Space (KPPAK) mode.

* Certain "ethtool" options are reported as "Not Supported" when SecureXL works in the User Space (UPPAK) mode.

  <br />

## Cause

**Note:**Starting in R82.10, SecureXL supports only UPPAK mode.

In the [R81.20 Jumbo Hotfix Accumulator](https://sc1.checkpoint.com/documents/Jumbo_HFA/R81.20/Default.htm) (Take 38) and in the [R81.10 Jumbo Hotfix Accumulator](https://sc1.checkpoint.com/documents/Jumbo_HFA/R81.10/Default.htm)(Take 81), Check Point added support for the SecureXL User Space (UPPAK) mode operation on specific Check Point appliances. The SecureXL UPPAK mode increases performance and unlocks more advanced features in SecureXL.

As a part of this change, Check Point changed the traditional kernel network drivers to Poll Mode Drivers (PMD) that operate in the user space.

PMDs use different APIs between software and Network Device hardware.

**Note:**Starting in R82.10, SecureXL supports only UPPAK mode.

## Solution

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