> Source: [sk184210](https://support.checkpoint.com/results/sk/sk184210)

# sk184210 - "RTGRTG0019 Syntax error at <last-member-query-interval>" when configuring IGMP for a specific interface

| Property | Value |
|----------|-------|
| Solution ID | sk184210 |
| Date Created | 2025-11-27 |
| Last Modified | 2025-12-01 |
| Technical Level | General |
| Products | Security Gateway |
| Versions | R82 |
| OS | Gaia |

## Symptoms

- * When you configure Internet Group Management Protocol (IGMP) on Gaia R82 with the command `set igmp port ethxxx.xxxx last-member-query-interval 1`, the system shows this error:

  `RTGRTG0019 Syntax error at <last-member-query-interval>`
* It is not possible to set the `last-member-query-interval` parameter for IGMP ports.

## Cause

The command parser does not recognize the `last-member-query-interval` parameter in its current form.

## Solution

[Contact Check Point Support](https://www.checkpoint.com/support-services/contact-support/) to get a Hotfix for this issue.

A Support Engineer will make sure the Hotfix is compatible with your environment before providing it.  
For faster resolution and verification, collect these files:

1. [CPinfo](https://support.checkpoint.com/results/sk/sk92739) file from the Management Server involved in the case.
2. [CPinfo](https://support.checkpoint.com/results/sk/sk92739) file from the Security Gateway / each Cluster Member / Security Group involved in the case.

**Hotfix installation instructions:**   
Refer to [sk168597 - How to install a Hotfix](https://support.checkpoint.com/results/sk/sk168597).

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