Packet #13905480 Success

NODEINFO_APP packet from Sierra norte Madrid ⛰️🗼🌞 (SNM) to Zrkt

17
Total Receptions
17
Unique Gateways
2
Hop Count
98
Payload Bytes
Packet Information
Database ID: 13905480
Mesh Packet ID: 0xb79653a2
Used for correlation across gateways
Timestamp: 2025-10-06 20:16:19 UTC
From Node: Sierra norte Madrid ⛰️🗼🌞 (SNM)
To Node: Zrkt (0424)
Success: Processed
Protocol: NODEINFO_APP
Port: 4
Gateway: Oxygen EA4HKU (O)
Channel: MediumSlow
RSSI: -113 dBm
SNR: -9.25 dBm
Hop Info: 2/4 hops
Start: 4, Limit: 2
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:!a0cb6198
Channel:MediumSlow
Payload Type:NODEINFO_APP
Hop Count:2 / 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 (2 hops)
+ 1 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !a0cb6198
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 1819542564
Target node ID 		uint32
decoded.portnum 4
NODEINFO_APP 		enum
decoded.payload_length 98 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 -113.0 dBm
Signal strength at gateway 		int32
rx_snr -9.25 dB
Signal quality at gateway 		float
rx_time 1759781778
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 245
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1759781779.8113723
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 (2 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !a0cb6198
Signal Metrics: RSSI: -113.0 dBm
SNR: -9.25 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": "!a0cb6198", "channel_id": "MediumSlow", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1129719940, "to": 1819542564, "id": 3080082338, "rx_time": 1759781778, "rx_snr": -9.25, "rx_rssi": -113, "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": 245, "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
Oxygen EA4HKU (O) Primary 0.000s
Reference 		-113.0 dBm -9.25 dB 2 MediumSlow 2025-10-06 20:16:19 Current
[TLG] 📡🌐🔋🔌 (tlg0) -4.344s
Before 		-111.0 dBm -4.50 dB 0 MediumSlow 2025-10-06 20:16:15 View
GRN1-Base🗼🌐 (GRN1) -4.337s
Before 		-101.0 dBm -4.75 dB 0 MediumSlow 2025-10-06 20:16:15 View
Rodashtastic🗼🌐 (RDSt) -2.786s
Before 		-114.0 dBm -7.00 dB 1 MediumSlow 2025-10-06 20:16:17 View
Venturada2🗼🌐☀️ (Vb2) -0.488s
Before 		-89.0 dBm 2.50 dB 2 MediumSlow 2025-10-06 20:16:19 View
Carbon EA4HKU (C) +0.195s
After 		-109.0 dBm 0.50 dB 2 MediumSlow 2025-10-06 20:16:20 View
Baldur Fijo (BalF) +0.285s
After 		-117.0 dBm -10.00 dB 2 MediumSlow 2025-10-06 20:16:20 View
Villalbilla02 (VBV2) +0.376s
After 		-124.0 dBm -14.25 dB 2 MediumSlow 2025-10-06 20:16:20 View
Meshtastic 1760 (1760) +1.706s
After 		-110.0 dBm 5.25 dB 3 MediumSlow 2025-10-06 20:16:21 View
Meshtastic 18a4 (18a4) +1.713s
After 		-106.0 dBm -1.25 dB 3 MediumSlow 2025-10-06 20:16:21 View
Mec Rocket Meco (MRM) +1.927s
After 		-108.0 dBm -7.50 dB 2 MediumSlow 2025-10-06 20:16:21 View
Zion 🗼 (Zion) +3.023s
After 		-108.0 dBm -14.50 dB 3 MediumSlow 2025-10-06 20:16:22 View
Machu Pichu (MaPi) +3.067s
After 		-104.0 dBm -12.25 dB 3 MediumSlow 2025-10-06 20:16:22 View
EA5GHE-09 (58a8) +3.197s
After 		-98.0 dBm 3.00 dB 3 MediumSlow 2025-10-06 20:16:23 View
tizon (Sylv) +6.151s
After 		-105.0 dBm 3.25 dB 4 MediumSlow 2025-10-06 20:16:25 View
Ventilla 📡🌐 (VENT) +22.568s
After 		-121.0 dBm -14.50 dB 4 MediumSlow 2025-10-06 20:16:42 View
🌐Charly Unid Movil🛰 (C181) +2519.067s
After 		-110.0 dBm -4.25 dB 4 MediumSlow 2025-10-06 20:58:18 View
17

Total Receptions

17

Unique Gateways