Packet #10420833 Success

NODEINFO_APP packet from Meshtastic a76a (a76a) to !ffffffff

13
Total Receptions
13
Unique Gateways
2
Hop Count
82
Payload Bytes
Packet Information
Database ID: 10420833
Mesh Packet ID: 0x0a57bcbc
Used for correlation across gateways
Timestamp: 2025-09-13 13:21:55 UTC
From Node: Meshtastic a76a (a76a)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: NODEINFO_APP
Port: 4
Gateway: Meshtastic fbec (fbec)
Channel: MediumSlow
RSSI: -124 dBm
SNR: -4.25 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:!7aa6fbec
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 !7aa6fbec
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 -124.0 dBm
Signal strength at gateway 		int32
rx_snr -4.25 dB
Signal quality at gateway 		float
rx_time 1757769713
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 Not set uint32
tx_after Not set uint32
timestamp 1757769715.7463489
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: !7aa6fbec
Signal Metrics: RSSI: -124.0 dBm
SNR: -4.25 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": "!7aa6fbec", "channel_id": "MediumSlow", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2991630186, "to": 4294967295, "id": 173522108, "rx_time": 1757769713, "rx_snr": -4.25, "rx_rssi": -124, "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": 0, "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
Meshtastic fbec (fbec) Primary 0.000s
Reference 		-124.0 dBm -4.25 dB 2 MediumSlow 2025-09-13 13:21:55 Current
Venturada base🗼🌐 (Vb) -0.878s
Before 		-118.0 dBm -9.25 dB 1 MediumSlow 2025-09-13 13:21:54 View
Venturada2🗼🌐☀️ (Vb2) -0.350s
Before 		-97.0 dBm -1.75 dB 2 MediumSlow 2025-09-13 13:21:55 View
Mec Rocket Meco (MRM) -0.328s
Before 		-117.0 dBm -16.50 dB 2 MediumSlow 2025-09-13 13:21:55 View
@lazynoda cocidito 🥵 🗼🌐 (LNCM) -0.047s
Before 		-111.0 dBm 0.25 dB 2 MediumSlow 2025-09-13 13:21:55 View
Tlgo 📡🌐🔋🔌 (TLG0) -0.023s
Before 		-114.0 dBm -7.75 dB 2 MediumSlow 2025-09-13 13:21:55 View
GRN1-Base🗼🌐 (GRN1) +0.009s
After 		-98.0 dBm 5.25 dB 2 MediumSlow 2025-09-13 13:21:55 View
Ocumare_Base_🗼🌐 (CATA) +0.170s
After 		-112.0 dBm -16.00 dB 2 MediumSlow 2025-09-13 13:21:55 View
Antonio 9f30 (9f30) +1.194s
After 		-109.0 dBm -9.50 dB 2 MediumSlow 2025-09-13 13:21:56 View
Zion 🗼 (Zion) +1.237s
After 		-107.0 dBm -11.50 dB 3 MediumSlow 2025-09-13 13:21:56 View
Suop 📡 🌐 (SUOP) +2.517s
After 		-113.0 dBm -6.00 dB 3 MediumSlow 2025-09-13 13:21:58 View
Perseo 🗼🌐 (nvm1) +3.853s
After 		-86.0 dBm -11.00 dB 4 MediumSlow 2025-09-13 13:21:59 View
Will - Azuqueca (WAzq) +11.884s
After 		-104.0 dBm -8.00 dB 3 MediumSlow 2025-09-13 13:22:07 View
13

Total Receptions

13

Unique Gateways