sk184292 - ARPING fails in SecureXL UPPAK mode

ARPING fails in SecureXL UPPAK mode

Product

SecureXL

Version

R81.20, R82, R82.10

OS

Gaia

Platform

19000, 29000, 3900, 9000, LightSpeed QLS

Last Modified

2026-07-23

Symptoms

Cause

The ARPING utility does not work in SecureXL UPPAK mode because of a limitation in how ARP traffic is processed and displayed. When the target IP address already exists in the ARP table, UPPAK mode does not show ARPING responses as expected.

Although ARP requests and replies are visible in packet captures and normal traffic is unaffected, the ARPING output remains empty. This issue appeared after migrating to new hardware and upgrading to R81.20 or later, and it persists across multiple Jumbo Hotfix Accumulator takes. Switching SecureXL to KPPAK mode resolves the problem, confirming that the limitation is specific to UPPAK mode.

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

Solution

This problem was fixed. The fix is included in:

If you choose not to upgrade, Check Point can supply a Hotfix. Contact Check Point Support 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 files from the Security Management Server and Security Gateways involved in the case.

Hotfix installation instructions:

Refer to sk168597 - How to install a Hotfix.

NOTE

This solution has been verified for the specific scenario, described by the combination of Product, Version and Symptoms. It may not work in other scenarios.

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