RUTX11 RUTX_R_00.07.22.3: Need compatible mosquitto_sub / mosquitto-client-ssl package

Networking Solutions Question
1

Hi,

I am using a Teltonika RUTX11 and need an MQTT subscriber CLI tool, preferably mosquitto_sub, for a local alarm-handling script.

Device details:

Device:     RUTX11
Kernel:     6.6.119
Firmware:   RUTX_R_00.07.22.3
Build:      87e33b723e
Build date: 2026-05-15 07:21:19
Architecture: arm_cortex-a7_neon-vfpv4

The router already has Mosquitto broker/library packages installed:

libmosquitto-ssl - 2.0.21-2
mosquitto-ssl    - 2.0.21-2

opkg status mosquitto-ssl shows:

Package: mosquitto-ssl
Version: 2.0.21-2
Depends: libc, librt, ubus, libubox20240329, libuci20130104, tpm2_importer, libopenssl3
Provides: mosquitto
Architecture: arm_cortex-a7_neon-vfpv4

However, the client tools are not present:

command -v mosquitto_sub
command -v mosquitto_pub
find /usr -name mosquitto_sub 2>/dev/null

All return nothing.

Running:

opkg update
opkg list | grep -Ei 'mosquitto|mqtt'

shows only:

data-sender-mod-mqtt-in - 1.25-1
data-sender-mod-mqtt-out - 1.25-1
libmosquitto-ssl - 2.0.21-2
mosquitto-ssl - 2.0.21-2
mqtt-modbus-gateway - 2026-03-13
mqtt_pub - 2026-02-11
rms_mqtt - 2026-03-13-1
vuci-app-data-sender-api-mod-mqtt-in - 1
vuci-app-data-sender-api-mod-mqtt-out - 1
vuci-app-mqtt-api - 1
vuci-app-mqtt-ui - 2026-05-07-07826f788d-1

Trying to install the expected OpenWrt-style client packages fails:

opkg install mosquitto-client-ssl

Result:

Unknown package 'mosquitto-client-ssl'.

Also:

opkg install mosquitto-client-nossl

Result:

Unknown package 'mosquitto-client-nossl'.

I also noticed that an OpenWrt feed file exists at:

/etc/opkg/openwrt/distfeeds.conf

with entries for OpenWrt 21.02.0, but I am reluctant to install packages from generic OpenWrt feeds because this is a RutOS device and I do not want to introduce ABI/dependency problems on a production router.

My use case:

I have an MQTT alarm topic such as:

modbus/vessel/alarms/#

with JSON payloads, and I want a local script on the router to subscribe to this topic and send SMS alerts based on alarm edge detection, cooldown/backoff, whitelist filtering, and similar logic.

A typical approach would be:

mosquitto_sub -h <broker-ip> -t 'modbus/vessel/alarms/#' -v | while read -r line; do
    # parse payload and send SMS
done

But mosquitto_sub is missing.

Questions:

  1. Is there an official Teltonika package for mosquitto_sub / mosquitto-client-ssl for RUTX_R_00.07.22.3?

  2. If not, is there a recommended way to build mosquitto-client-ssl using the Teltonika RUTX SDK?

  3. Is there an SDK archive specifically matching this firmware version, for example:

RUTX_R_GPL_00.07.22.3.tar.gz

  1. If only a newer SDK is available, for example RUTX_R_GPL_00.07.23.3.tar.gz, is a mosquitto-client-ssl package built from that SDK expected to work safely on firmware RUTX_R_00.07.22.3, or should the router first be upgraded to the matching firmware version?

  2. Is Teltonika’s Data to Server / MQTT input intended to be usable as an alternative to mosquitto_sub for this kind of local alarm processing, or is it mainly intended for forwarding data rather than running custom edge-detection logic?

The goal is to avoid installing incompatible OpenWrt packages and instead use a package or binary that is compatible with RutOS RUTX_R_00.07.22.3.

Any guidance on the correct package, SDK version, or recommended implementation approach would be appreciated.

Thanks.