Packet #10639143 Success

NODEINFO_APP packet from Meshtastic a76a (a76a) to !ffffffff

15
Total Receptions
15
Unique Gateways
2
Hop Count
82
Payload Bytes
Packet Information
Database ID: 10639143
Mesh Packet ID: 0x32fbb4f3
Used for correlation across gateways
Timestamp: 2025-09-15 00:55:25 UTC
From Node: Meshtastic a76a (a76a)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: NODEINFO_APP
Port: 4
Gateway: Raor🐟 (PMI)
Channel: MediumSlow
RSSI: -110 dBm
SNR: -15.75 dBm
Hop Info: 2/4 hops
Start: 4, Limit: 2
Payload Data
Protocol: NODEINFO_APP
Size: 82 bytes
Decoded: Yes
Decoded Data:
Long Name:Meshtastic a76a
Short Name:a76a
Node ID:!b250a76a
MAC Address:7CGyUKdq
Hardware:NRF52_PROMICRO_DIY
Raw Packet Analysis
Complete field breakdown and MQTT privacy/exposure analysis
Packet Structure
MQTT Packet Flow:
ServiceEnvelope (MQTT layer) → MeshPacket (Mesh layer) → Decoded Payload (Application data)
Total Size:82 bytes
Gateway:!b081e6aa
Channel:MediumSlow
Payload Type:NODEINFO_APP
Hop Count:2 / 4
Privacy Summary
Exposure Level:
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: MediumSlow
+ 1 more...
Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers
+ 2 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !b081e6aa
Node ID format
channel_id MediumSlow
packet MeshPacket (82 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 2991630186
Source node ID 		uint32
to 4294967295 (Broadcast)
Visible to all nodes 		uint32
decoded.portnum 4
NODEINFO_APP 		enum
decoded.payload_length 82 bytes size
hop_limit 2
Remaining hops allowed 		uint32
hop_start 4
Initial hop limit 		uint32
hops_taken 2
Calculated: hop_start - hop_limit 		derived
rx_rssi -110.0 dBm
Signal strength at gateway 		int32
rx_snr -15.75 dB
Signal quality at gateway 		float
rx_time 1757897726
Receive timestamp 		fixed32
via_mqtt False
Direct LoRa transmission 		bool
want_ack False
No ACK requested 		bool
priority Not set enum
delayed Not set enum
channel Not set uint32
pki_encrypted False
Standard encryption 		bool
next_hop Not set uint32
relay_node 8
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1757897725.3301506
Unix timestamp 		uint32
MQTT Privacy & Exposure Analysis

Analysis of privacy features and exposure risks when packet is shared via MQTT

Exposure Level: Broadcast
Privacy Features:
  • ✓ Direct LoRa transmission (not via MQTT)
  • ✓ Custom channel: MediumSlow
  • ✓ Gateway node ID tracked
Exposure Risks:
  • ⚠ Visible to all nodes on channel
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ Multi-hop path visible (2 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !b081e6aa
Signal Metrics: RSSI: -110.0 dBm
SNR: -15.75 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:NODEINFO_APP
Size:82 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "id": "!b250a76a", "long_name": "Meshtastic a76a", "short_name": "a76a", "macaddr": "7CGyUKdq", "hw_model": "NRF52_PROMICRO_DIY" }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!b081e6aa", "channel_id": "MediumSlow", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2991630186, "to": 4294967295, "id": 855356659, "rx_time": 1757897726, "rx_snr": -15.75, "rx_rssi": -110, "hop_limit": 2, "hop_start": 4, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 8, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09216232353061373661120f4d65736874617374696320613736611a04613736612206ec21b250a76a283f38014220668885becc5a9e3125cbac37075d8a0a8c4278e01fb31d6a3884ec9cef01763d4800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!b250a76a", "long_name": "Meshtastic a76a", "short_name": "a76a", "macaddr": "7CGyUKdq", "hw_model": "NRF52_PROMICRO_DIY", "role": "CLIENT_MUTE", "public_key": "ZoiFvsxanjEly6w3B12KCoxCeOAfsx1qOITsnO8Bdj0=", "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }
Raw Packet Data (82 bytes)
0a09216232353061373661120f4d65736874617374696320613736611a04613736612206ec21b250a76a283f38014220668885becc5a9e3125cbac37075d8a0a8c4278e01fb31d6a3884ec9cef01763d4800
Hex Analysis:
Size:82 bytes
Format:Protobuf (Protocol Buffers)
Encoding:Binary with varint and length-delimited fields
This is the raw protobuf-encoded payload as received from MQTT. The structure follows the Meshtastic protobuf schema definitions.
All Receptions
All gateways that received this packet
Correlation: Using Mesh Packet ID
Reception Locations

Loading reception map...

Map shows gateway locations that received this packet. Hop counts are displayed if available.
Gateway Time Offset RSSI SNR Hops Channel Timestamp Actions
Raor🐟 (PMI) Primary 0.000s
Reference 		-110.0 dBm -15.75 dB 2 MediumSlow 2025-09-15 00:55:25 Current
Venturada2🗼🌐☀️ (Vb2) -4.043s
Before 		-111.0 dBm -15.25 dB 0 MediumSlow 2025-09-15 00:55:21 View
Perseo 🗼🌐 (nvm1) -1.966s
Before 		-94.0 dBm 1.50 dB 1 MediumSlow 2025-09-15 00:55:23 View
GRN1-Base🗼🌐 (GRN1) -1.617s
Before 		-98.0 dBm 7.25 dB 1 MediumSlow 2025-09-15 00:55:23 View
Meshtastic fbec (fbec) -1.609s
Before 		-122.0 dBm -3.00 dB 1 MediumSlow 2025-09-15 00:55:23 View
@lazynoda cocidito 🥵 🗼🌐 (LNCM) -1.605s
Before 		-125.0 dBm -13.50 dB 1 MediumSlow 2025-09-15 00:55:23 View
Villalbilla02 (VBV2) -1.404s
Before 		-110.0 dBm -0.75 dB 1 MediumSlow 2025-09-15 00:55:23 View
Will - Azuqueca (WAzq) -1.297s
Before 		-112.0 dBm -8.25 dB 2 MediumSlow 2025-09-15 00:55:24 View
Tlgo 📡🌐🔋🔌 (TLG0) -0.949s
Before 		-113.0 dBm -3.00 dB 2 MediumSlow 2025-09-15 00:55:24 View
Ocumare_Base_🗼🌐 (CATA) -0.208s
Before 		-111.0 dBm -13.25 dB 2 MediumSlow 2025-09-15 00:55:25 View
Meshtastic 18a4 (18a4) +0.267s
After 		-116.0 dBm -5.25 dB 3 MediumSlow 2025-09-15 00:55:25 View
Meshtastic 1760 (1760) +0.615s
After 		Unknown Unknown 4 MediumSlow 2025-09-15 00:55:25 View
Vaguada Portable (Vgda) +1.231s
After 		-101.0 dBm -0.75 dB 3 MediumSlow 2025-09-15 00:55:26 View
LoRaEncomienda (LREC) +5.697s
After 		-124.0 dBm -2.75 dB 2 MediumSlow 2025-09-15 00:55:31 View
KIFO (14f1) +267.460s
After 		-111.0 dBm 0.75 dB 1 MediumSlow 2025-09-15 00:59:52 View
15

Total Receptions

15

Unique Gateways