> Source: [sk182736](https://support.checkpoint.com/results/sk/sk182736)

# sk182736 - "fw monitor" does not show return traffic after changing the cluster configuration from VRRP to ClusterXL

| Property | Value |
|----------|-------|
| Solution ID | sk182736 |
| Date Created | 2024-10-13 |
| Last Modified | 2024-10-20 |
| Technical Level | Advanced |
| Products | Security Gateway |
| Versions | R81.20, R81.10 (EOS) |
| OS | Gaia |

## Symptoms

- * "`fw monitor`" does not show return traffic after you change the cluster configuration from VRRP to ClusterXL based on the instructions in [sk118034](https://support.checkpoint.com/results/sk/sk118034).

* The "`tcpdump`" command with the "`-e`" flag shows a MAC address that is not the MAC address of the device responding to the ARP requests.

## Cause

The Proxy ARP entries continue to point to the VRRP VMAC after the migration to ClusterXL.

<br />

## Solution

This solution requires authentication. Please log in to view the full solution.

---

# 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
