Packet #12291375 Success

NODEINFO_APP packet from Sierra norte Madrid ⛰️🗼🌞 (SNM) to MeshMadrid 00 🗼☀️ 🌐 (MM00)

19
Total Receptions
19
Unique Gateways
3
Hop Count
98
Payload Bytes
Packet Information
Database ID: 12291375
Mesh Packet ID: 0xb767ac84
Used for correlation across gateways
Timestamp: 2025-09-26 17:19:13 UTC
From Node: Sierra norte Madrid ⛰️🗼🌞 (SNM)
To Node: MeshMadrid 00 🗼☀️ 🌐 (MM00)
Success: Processed
Protocol: NODEINFO_APP
Port: 4
Gateway: Fuenca fijo (c578)
Channel: MediumSlow
RSSI: -127 dBm
SNR: -15.0 dBm
Hop Info: 3/4 hops
Start: 4, Limit: 1
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:!a0cbc578
Channel:MediumSlow
Payload Type:NODEINFO_APP
Hop Count:3 / 4
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 !a0cbc578
Node ID format
channel_id MediumSlow
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 845846678
Target node ID 		uint32
decoded.portnum 4
NODEINFO_APP 		enum
decoded.payload_length 98 bytes size
hop_limit 1
Remaining hops allowed 		uint32
hop_start 4
Initial hop limit 		uint32
hops_taken 3
Calculated: hop_start - hop_limit 		derived
rx_rssi -127.0 dBm
Signal strength at gateway 		int32
rx_snr -15.00 dB
Signal quality at gateway 		float
rx_time 1758907151
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 1758907153.6227286
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: MediumSlow
  • ✓ 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: !a0cbc578
Signal Metrics: RSSI: -127.0 dBm
SNR: -15.00 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": "!a0cbc578", "channel_id": "MediumSlow", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1129719940, "to": 845846678, "id": 3077024900, "rx_time": 1758907151, "rx_snr": -15.0, "rx_rssi": -127, "hop_limit": 1, "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": "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 Channel Timestamp Actions
Fuenca fijo (c578) Primary 0.000s
Reference 		-127.0 dBm -15.00 dB 3 MediumSlow 2025-09-26 17:19:13 Current
GRN1-Base🗼🌐 (GRN1) -8.094s
Before 		-100.0 dBm -3.75 dB 0 MediumSlow 2025-09-26 17:19:05 View
[TLG] 📡🌐🔋🔌 (tlg0) -7.081s
Before 		-111.0 dBm -6.00 dB 0 MediumSlow 2025-09-26 17:19:06 View
Meshtastic 1760 (1760) -6.607s
Before 		-128.0 dBm -8.50 dB 1 MediumSlow 2025-09-26 17:19:07 View
Meshtastic 18a4 (18a4) -6.147s
Before 		Unknown Unknown 2 MediumSlow 2025-09-26 17:19:07 View
g1bal (g1b0) -5.936s
Before 		-95.0 dBm 4.75 dB 2 MediumSlow 2025-09-26 17:19:07 View
Venturada2🗼🌐☀️ (Vb2) -4.991s
Before 		-98.0 dBm -3.25 dB 1 MediumSlow 2025-09-26 17:19:08 View
SkG@Home 📡🌐 (SkGH) -4.796s
Before 		-126.0 dBm -17.25 dB 2 MediumSlow 2025-09-26 17:19:08 View
Rodashtastic🗼🌐 (RDSt) -4.702s
Before 		-119.0 dBm -11.25 dB 1 MediumSlow 2025-09-26 17:19:08 View
Mec Rocket Meco (MRM) -4.038s
Before 		-107.0 dBm -5.25 dB 2 MediumSlow 2025-09-26 17:19:09 View
Naranjo C191 🌐 (FNL) -2.020s
Before 		-120.0 dBm -14.25 dB 1 MediumSlow 2025-09-26 17:19:11 View
Wis 7d99 (7d99) -1.625s
Before 		-39.0 dBm 7.75 dB 3 MediumSlow 2025-09-26 17:19:11 View
Alma Tracker (AGPS) -0.825s
Before 		-104.0 dBm -15.00 dB 2 MediumSlow 2025-09-26 17:19:12 View
Will - Azuqueca (WAzq) -0.234s
Before 		-108.0 dBm -6.75 dB 3 MediumSlow 2025-09-26 17:19:13 View
Machu Pichu (MaPi) +0.032s
After 		-92.0 dBm 5.50 dB 3 MediumSlow 2025-09-26 17:19:13 View
Baldur Fijo (BalF) +0.057s
After 		-116.0 dBm -8.75 dB 3 MediumSlow 2025-09-26 17:19:13 View
🌐Charly Unid Movil🛰 (C181) +2.181s
After 		-117.0 dBm -13.25 dB 4 MediumSlow 2025-09-26 17:19:15 View
Monolito (MoN) +3.609s
After 		-76.0 dBm 8.00 dB 4 MediumSlow 2025-09-26 17:19:17 View
Kenobi23 QTH (5aec) +518.262s
After 		-100.0 dBm -1.00 dB 1 MediumSlow 2025-09-26 17:27:51 View
19

Total Receptions

19

Unique Gateways