Packet #27082291 Success

NODEINFO_APP packet from ETH Gripen (ET39) to BGS-CEN-FX02A (BG03)

27
Total Receptions
27
Unique Gateways
3
Hop Count
75
Payload Bytes
Packet Information
Database ID: 27082291
Mesh Packet ID: 0x6325911d
Used for correlation across gateways
Timestamp: 2025-12-12 00:21:38 UTC
From Node: ETH Gripen (ET39)
To Node: BGS-CEN-FX02A (BG03)
Success: Processed
Protocol: NODEINFO_APP
Port: 4
Gateway: P3 iGate 🏠🌐 (P3N2)
Channel: MediumFast
RSSI: -37 dBm
SNR: 10.75 dBm
Hop Info: 3/5 hops
Start: 5, Limit: 2
Relay Node: 25 P3N1
Last byte of the last hop that relayed this packet - Candidate source node(s) based on 0-hop direct receptions
Payload Data
Protocol: NODEINFO_APP
Size: 75 bytes
Decoded: Yes
Decoded Data:
Long Name:ETH Gripen
Short Name:ET39
Node ID:!b2a7c994
MAC Address:gPGyp8mU
Hardware:HELTEC_V4
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:75 bytes
Gateway:!e00cd7d4
Channel:MediumFast
Payload Type:NODEINFO_APP
Hop Count:3 / 5
Privacy Summary
Exposure Level:
Direct Message
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Targeted to specific node
+ 2 more...
Exposure Risks:
⚠ Packet visible to MQTT subscribers
⚠ Multi-hop path visible (3 hops)
+ 1 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !e00cd7d4
Node ID format
channel_id MediumFast
packet MeshPacket (75 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 2997340564
Source node ID 		uint32
to 1636440297
Target node ID 		uint32
decoded.portnum 4
NODEINFO_APP 		enum
decoded.payload_length 75 bytes size
hop_limit 2
Remaining hops allowed 		uint32
hop_start 5
Initial hop limit 		uint32
hops_taken 3
Calculated: hop_start - hop_limit 		derived
rx_rssi -37.0 dBm
Signal strength at gateway 		int32
rx_snr 10.75 dB
Signal quality at gateway 		float
rx_time 1765498897
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 37
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1765498898.4722137
Unix timestamp 		uint32
MQTT Privacy & Exposure Analysis

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

Exposure Level: Direct Message
Privacy Features:
  • ✓ Direct LoRa transmission (not via MQTT)
  • ✓ Targeted to specific node
  • ✓ Custom channel: MediumFast
  • ✓ Gateway node ID tracked
Exposure Risks:
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ Multi-hop path visible (3 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !e00cd7d4
Signal Metrics: RSSI: -37.0 dBm
SNR: 10.75 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:NODEINFO_APP
Size:75 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "id": "!b2a7c994", "long_name": "ETH Gripen", "short_name": "ET39", "macaddr": "gPGyp8mU", "hw_model": "HELTEC_V4" }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!e00cd7d4", "channel_id": "MediumFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2997340564, "to": 1636440297, "id": 1663406365, "rx_time": 1765498897, "rx_snr": 10.75, "rx_rssi": -37, "hop_limit": 2, "hop_start": 5, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 37, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09216232613763393934120a4554482047726970656e1a0445543339220680f1b2a7c994286e4220f313c8056a58539c61518a491b035e0dad78703221dc477ae0d213889ff595674801", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!b2a7c994", "long_name": "ETH Gripen", "short_name": "ET39", "macaddr": "gPGyp8mU", "hw_model": "HELTEC_V4", "public_key": "8xPIBWpYU5xhUYpJGwNeDa14cDIh3Ed64NITiJ/1lWc=", "is_unmessagable": true, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }
Raw Packet Data (75 bytes)
0a09216232613763393934120a4554482047726970656e1a0445543339220680f1b2a7c994286e4220f313c8056a58539c61518a491b035e0dad78703221dc477ae0d213889ff595674801
Hex Analysis:
Size:75 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 Relay Channel Timestamp Actions
P3 iGate 🏠🌐 (P3N2) Primary 0.000s
Reference 		-37.0 dBm 10.75 dB 3 25 P3N1 MediumFast 2025-12-12 00:21:38 UTC Current
ETH Gripen (ET39) -7.185s
Before 		Unknown Unknown 0 94 ET39 MediumFast 2025-12-12 00:21:31 UTC View
XiaoWatt c4c8 🌐🔌 (c4c8) -6.328s
Before 		-95.0 dBm -4.25 dB 0 94 ET39 MediumFast 2025-12-12 00:21:32 UTC View
Ocumare Norte🗼🌐 (RRN) -4.614s
Before 		-101.0 dBm -6.75 dB 2 b0 Vbm , Vb2 MediumFast 2025-12-12 00:21:33 UTC View
JAGO1_Cañaveral (JAGO) -4.611s
Before 		-123.0 dBm -14.00 dB 2 b0 Vbm , PUPM , Vb2 MediumFast 2025-12-12 00:21:33 UTC View
GRN1-Base🗼🌐 🔋 (GRN1) -4.279s
Before 		-97.0 dBm Unknown 2 b0 Vbm , Vb2 MediumFast 2025-12-12 00:21:34 UTC View
🎄 SkG@Home 📡🌐 (SkGH) -4.059s
Before 		-98.0 dBm -7.25 dB 3 ac MediumFast 2025-12-12 00:21:34 UTC View
Mec Rocket Meco (MRM) -2.968s
Before 		-113.0 dBm -13.75 dB 3 fc 74fc , Anu2 MediumFast 2025-12-12 00:21:35 UTC View
Villarejo01 (VIL1) -1.642s
Before 		-117.0 dBm -11.50 dB 2 61 TO1 MediumFast 2025-12-12 00:21:36 UTC View
ETH Goose (ET03) -1.030s
Before 		-39.0 dBm 10.50 dB 3 41 ET01 MediumFast 2025-12-12 00:21:37 UTC View
Eagle’s Nest (EAGL) -0.908s
Before 		-114.0 dBm -4.00 dB 3 74 MediumFast 2025-12-12 00:21:37 UTC View
PXT_Home (PXT1) +0.134s
After 		-99.0 dBm 9.00 dB 3 fd BAS2 MediumFast 2025-12-12 00:21:38 UTC View
Zion 🗼 (Zion) +0.165s
After 		-115.0 dBm -10.75 dB 3 fd BAS2 MediumFast 2025-12-12 00:21:38 UTC View
Meshtastic 1760 (1760) +2.294s
After 		-120.0 dBm -4.00 dB 4 40 AldB MediumFast 2025-12-12 00:21:40 UTC View
Meshtastic 18a4 (18a4) +2.535s
After 		Unknown Unknown 5 60 1760 MediumFast 2025-12-12 00:21:41 UTC View
Quixote_JS8_5🗼🌐 (QXT5) +3.341s
After 		-114.0 dBm -5.00 dB 4 - MediumFast 2025-12-12 00:21:41 UTC View
Quixote_JS8_7 (QXT7) +3.344s
After 		-18.0 dBm 11.00 dB 4 - MediumFast 2025-12-12 00:21:41 UTC View
Karabanchel_Baldur (KarB) +4.805s
After 		-77.0 dBm 10.25 dB 5 24 vid MediumFast 2025-12-12 00:21:43 UTC View
Wake Up, Neo...📡 (NEO) +4.808s
After 		-97.0 dBm -1.00 dB 5 24 vid MediumFast 2025-12-12 00:21:43 UTC View
Meshtastic b2b4📡🌐 (b2b4) +4.810s
After 		-94.0 dBm 5.25 dB 5 24 vid MediumFast 2025-12-12 00:21:43 UTC View
mario (mmm) +4.976s
After 		-110.0 dBm -6.50 dB 5 24 vid MediumFast 2025-12-12 00:21:43 UTC View
Meshtastic 870c📡🌐 (870c) +5.014s
After 		-112.0 dBm -4.50 dB 5 24 vid MediumFast 2025-12-12 00:21:43 UTC View
Getafe ☀️ (GTF) +5.124s
After 		-106.0 dBm 4.25 dB 5 24 vid MediumFast 2025-12-12 00:21:43 UTC View
srs-h3 📡🌐 (srs0) +5.834s
After 		-122.0 dBm -13.25 dB 5 24 vid MediumFast 2025-12-12 00:21:44 UTC View
tizon (Sylv) +6.053s
After 		-89.0 dBm 10.50 dB 5 24 vid MediumFast 2025-12-12 00:21:44 UTC View
Test_Skynet_01 (TS01) +6.910s
After 		-73.0 dBm 10.75 dB 5 24 vid MediumFast 2025-12-12 00:21:45 UTC View
Fenix (FENX) +338.152s
After 		-117.0 dBm -8.75 dB 2 61 TO1 MediumFast 2025-12-12 00:27:16 UTC View
27

Total Receptions

27

Unique Gateways