# SNMPv3 monitoring fails on dplane while succeeding on mplane

## Product
Security Gateways

## Version
R81.20, R82, R82.10

## OS
Gaia

## Last Modified
2026-05-26

## Symptoms
- When MDPS is enabled and SNMP is configured to version 3 (SNMPv3), SNMP queries succeed on the Management Plane (mplane) but fail on the Data Plane (dplane).

Example:
```
[Expert@Host:mplane]# snmpwalk -v3 -l authPriv -u USER -a SHA512 -A PASSWORD -x AES256 -X PASSWORD localhost 1.3.6.1.2.1 |grep interface

HOST-RESOURCES-MIB::hrDeviceDescr.262145 = STRING: network interface lo
HOST-RESOURCES-MIB::hrDeviceDescr.262146 = STRING: network interface gre0
HOST-RESOURCES-MIB::hrDeviceDescr.262147 = STRING: network interface gretap0
HOST-RESOURCES-MIB::hrDeviceDescr.262148 = STRING: network interface erspan0
HOST-RESOURCES-MIB::hrDeviceDescr.262155 = STRING: network interface Sync
HOST-RESOURCES-MIB::hrDeviceDescr.262156 = STRING: network interface Mgmt
HOST-RESOURCES-MIB::hrSWRunParameters.21807 = STRING: "--color=auto interface"
```

```
[Expert@Host:mplane]# snmpwalk -v3 -l authPriv -u USER -a SHA512 -A PASSWORD -x AES256 -X PASSWORD -n dplane localhost 1.3.6.1.2.1 |grep interface |head -10

Timeout: No Response from localhost
```

## Cause
The SNMP process is missing required bindings in the internal database.

The SNMP process is configured with only the following argument:
```
process:snmpd:arg:3 /etc/snmp/userDefinedSettings.conf
```
Instead of:
```
process:snmpd:arg:3 /etc/snmp/userDefinedSettings.conf,/etc/snmp/vsx-proxy/snmpd.vsx.proxy.conf
```

## Solution
This problem was fixed. The fix is included in:
- [Jumbo Hotfix Accumulator for R82.10](https://sc1.checkpoint.com/documents/Jumbo_HFA/R82.10/Default.htm) starting from Take 19
- [Jumbo Hotfix Accumulator for R82](https://sc1.checkpoint.com/documents/Jumbo_HFA/R82/Default.htm) starting from Take 103
- [Jumbo Hotfix Accumulator for R81.20](https://sc1.checkpoint.com/documents/Jumbo_HFA/R81.20/Default.htm) starting from Take 126

If you choose not to upgrade, Check Point can supply a **Hotfix**. [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 the Hotfix.

For faster resolution and verification, please collect [CPinfo files](http://supportcontent.checkpoint.com/solutions?id=sk92739) from the Security Management Server and Security Gateways involved in the case.

### Hotfix installation instructions:
Refer to [sk168597 - How to install a Hotfix](https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doGoviewsolutiondetails=&solutionid=sk168597).

#### 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.

## Article Properties
Access Level: General
Status: Approved by TAC
Date Created: 2026-01-04
Last Modified: 2026-05-26