Packet #28267021 Success

NODEINFO_APP packet from Sierra norte Madrid ⛰️🗼🌞 (SNM) to EA4ENG 718c (4ENG)

18
Total Receptions
18
Unique Gateways
0
Hop Count
98
Payload Bytes
Packet Information
Database ID: 28267021
Mesh Packet ID: 0xc73b8df1
Used for correlation across gateways
Timestamp: 2025-12-17 12:47:22 UTC
From Node: Sierra norte Madrid ⛰️🗼🌞 (SNM)
To Node: EA4ENG 718c (4ENG)
Success: Processed
Protocol: NODEINFO_APP
Port: 4
Gateway: [samsepi0l] 📡🌐 (tlg0)
Channel: MediumFast
RSSI: -97 dBm
SNR: -4.25 dBm
Hop Info: 0/4 hops
Start: 4, Limit: 4
Relay Node: None
Payload Data
Protocol: NODEINFO_APP
Size: 98 bytes
Decoded: Yes
Decoded Data:
Long Name:Sierra norte Madrid ⛰️🗼🌞
Short Name:SNM
Node ID:!43562884
MAC Address:SMpDViiE
Hardware:HELTEC_WSL_V3
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:98 bytes
Gateway:!69828c38
Channel:MediumFast
Payload Type:NODEINFO_APP
Hop Count:Unknown / 4
Privacy Summary
Exposure Level:
Direct Message
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Targeted to specific node
+ 3 more...
Exposure Risks:
⚠ Packet visible to MQTT subscribers
⚠ RF signal metrics exposed (location inference possible)
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !69828c38
Node ID format
channel_id MediumFast
packet MeshPacket (98 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 1129719940
Source node ID 		uint32
to 1128100236
Target node ID 		uint32
decoded.portnum 4
NODEINFO_APP 		enum
decoded.payload_length 98 bytes size
hop_limit 4
Remaining hops allowed 		uint32
hop_start 4
Initial hop limit 		uint32
hops_taken 0
Calculated: hop_start - hop_limit 		derived
rx_rssi -97.0 dBm
Signal strength at gateway 		int32
rx_snr -4.25 dB
Signal quality at gateway 		float
rx_time 1765975640
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 1765975642.6805434
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
  • ✓ Zero-hop: direct from source to MQTT gateway
Exposure Risks:
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !69828c38
Zero Hop Policy: Enabled
Direct gateway connection
Signal Metrics: RSSI: -97.0 dBm
SNR: -4.25 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:NODEINFO_APP
Size:98 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "id": "!43562884", "long_name": "Sierra norte Madrid ⛰️🗼🌞", "short_name": "SNM", "macaddr": "SMpDViiE", "hw_model": "HELTEC_WSL_V3" }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!69828c38", "channel_id": "MediumFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1129719940, "to": 1128100236, "id": 3342568945, "rx_time": 1765975640, "rx_snr": -4.25, "rx_rssi": -97, "hop_limit": 4, "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": "0a092134333536323838341222536965727261206e6f727465204d616472696420e29bb0efb88ff09f97bcf09f8c9e1a03534e4d220648ca43562884282c380242207e52862e72b32f44af42b528084eefaa0bee58c0c7cbf44107a3ced8bae4c945", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!43562884", "long_name": "Sierra norte Madrid ⛰️🗼🌞", "short_name": "SNM", "macaddr": "SMpDViiE", "hw_model": "HELTEC_WSL_V3", "role": "ROUTER", "public_key": "flKGLnKzL0SvQrUoCE7vqgvuWMDHy/RBB6PO2LrkyUU=", "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }
Raw Packet Data (98 bytes)
0a092134333536323838341222536965727261206e6f727465204d616472696420e29bb0efb88ff09f97bcf09f8c9e1a03534e4d220648ca43562884282c380242207e52862e72b32f44af42b528084eefaa0bee58c0c7cbf44107a3ced8bae4c945
Hex Analysis:
Size:98 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
[samsepi0l] 📡🌐 (tlg0) Primary 0.000s
Reference 		-97.0 dBm -4.25 dB 0 - MediumFast 2025-12-17 12:47:22 UTC Current
Wake Up, Neo...📡 (NEO) -0.095s
Before 		-104.0 dBm -10.75 dB 1 f5 RPT4 MediumFast 2025-12-17 12:47:22 UTC View
Venturada2🗼🌐☀️ (Vb2) -0.092s
Before 		-99.0 dBm -1.50 dB 1 f5 RPT4 MediumFast 2025-12-17 12:47:22 UTC View
Meshtastic 1760 (1760) +0.232s
After 		-117.0 dBm 0.50 dB 1 f5 RPT4 MediumFast 2025-12-17 12:47:22 UTC View
XiaoWatt c4c8 🌐🔌 (c4c8) +0.429s
After 		-78.0 dBm 9.00 dB 2 b0 Vbm , Vb2 MediumFast 2025-12-17 12:47:23 UTC View
GRN1-Base🗼🌐 🔋 (GRN1) +0.677s
After 		-99.0 dBm -0.25 dB 2 b0 Vbm , Vb2 MediumFast 2025-12-17 12:47:23 UTC View
Meshtastic 18a4 (18a4) +0.683s
After 		Unknown Unknown 2 60 1760 MediumFast 2025-12-17 12:47:23 UTC View
Ocumare Norte🗼🌐 (RRN) +0.973s
After 		-65.0 dBm 10.75 dB 2 98 TCLB MediumFast 2025-12-17 12:47:23 UTC View
Quass001 ☄️ (Q001) +1.149s
After 		-46.0 dBm 11.00 dB 2 3a Q005 MediumFast 2025-12-17 12:47:23 UTC View
Aldinra_1640_🗼_🌐 (AldB) +1.250s
After 		-105.0 dBm 3.25 dB 2 60 1760 MediumFast 2025-12-17 12:47:23 UTC View
JAGO1_Cañaveral (JAGO) +1.730s
After 		-117.0 dBm -10.75 dB 1 38 tlg0 MediumFast 2025-12-17 12:47:24 UTC View
ETH Maverick (ET01) +2.243s
After 		-107.0 dBm -9.25 dB 2 61 TO1 MediumFast 2025-12-17 12:47:24 UTC View
MOVIL 1 🟢 MANCHASTIC (MV1V) +2.660s
After 		-77.0 dBm 11.00 dB 3 b4 MediumFast 2025-12-17 12:47:25 UTC View
Eagle’s Nest (EAGL) +2.858s
After 		-98.0 dBm 7.75 dB 3 48 SMR1 MediumFast 2025-12-17 12:47:25 UTC View
PXT_Home (PXT1) +3.017s
After 		-113.0 dBm -3.50 dB 4 48 mfms MediumFast 2025-12-17 12:47:25 UTC View
ETH Goose (ET03) +3.144s
After 		-34.0 dBm 11.00 dB 3 41 ET01 MediumFast 2025-12-17 12:47:25 UTC View
Fenix (FENX) +3.282s
After 		-118.0 dBm -14.75 dB 2 61 TO1 MediumFast 2025-12-17 12:47:25 UTC View
MakeSpaceMadrid (MKS) +3.621s
After 		-96.0 dBm 9.50 dB 4 d1 MKS2 MediumFast 2025-12-17 12:47:26 UTC View
18

Total Receptions

18

Unique Gateways