Packet #28243711 Success

NODEINFO_APP packet from Sierra norte Madrid ⛰️🗼🌞 (SNM) to Calnus - Base (CALB)

14
Total Receptions
14
Unique Gateways
1
Hop Count
98
Payload Bytes
Packet Information
Database ID: 28243711
Mesh Packet ID: 0xd5aa4dd8
Used for correlation across gateways
Timestamp: 2025-12-17 09:58:17 UTC
From Node: Sierra norte Madrid ⛰️🗼🌞 (SNM)
To Node: Calnus - Base (CALB)
Success: Processed
Protocol: NODEINFO_APP
Port: 4
Gateway: Karabanchel_Baldur (KarB)
Channel: MediumFast
RSSI: -95 dBm
SNR: Unknown
Hop Info: 1/4 hops
Start: 4, Limit: 3
Relay Node: 2d SkyB
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: 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:!13280088
Channel:MediumFast
Payload Type:NODEINFO_APP
Hop Count:1 / 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 (1 hops)
+ 1 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !13280088
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 2641270696
Target node ID 		uint32
decoded.portnum 4
NODEINFO_APP 		enum
decoded.payload_length 98 bytes size
hop_limit 3
Remaining hops allowed 		uint32
hop_start 4
Initial hop limit 		uint32
hops_taken 1
Calculated: hop_start - hop_limit 		derived
rx_rssi -95.0 dBm
Signal strength at gateway 		int32
rx_snr Not set float
rx_time 1765965496
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 45
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1765965497.2572978
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 (1 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !13280088
Signal Metrics: RSSI: -95.0 dBm
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": "!13280088", "channel_id": "MediumFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1129719940, "to": 2641270696, "id": 3584708056, "rx_time": 1765965496, "rx_snr": 0.0, "rx_rssi": -95, "hop_limit": 3, "hop_start": 4, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 45, "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
Karabanchel_Baldur (KarB) Primary 0.000s
Reference 		-95.0 dBm Unknown 1 2d SkyB MediumFast 2025-12-17 09:58:17 UTC Current
Varela Bot 🏡🤖 (🤖) -1.058s
Before 		-81.0 dBm 7.25 dB 1 1c 🏡 MediumFast 2025-12-17 09:58:16 UTC View
GRN1-Base🗼🌐 🔋 (GRN1) -0.841s
Before 		-108.0 dBm -10.50 dB 0 - MediumFast 2025-12-17 09:58:16 UTC View
Skynet (Sky) -0.689s
Before 		-40.0 dBm 11.00 dB 1 2d SkyB MediumFast 2025-12-17 09:58:16 UTC View
Rodashtastic🗼🌐 (RDSt) -0.522s
Before 		-116.0 dBm -11.75 dB 1 e8 GRN1 MediumFast 2025-12-17 09:58:16 UTC View
Meshtastic b2b4📡🌐 (b2b4) -0.004s
Before 		-110.0 dBm -7.00 dB 1 2d SkyB MediumFast 2025-12-17 09:58:17 UTC View
🤖 Nicolas Cage 🌐 (Cage) +0.223s
After 		-73.0 dBm 11.00 dB 1 2d SkyB MediumFast 2025-12-17 09:58:17 UTC View
tizon (Sylv) +0.317s
After 		-113.0 dBm -5.00 dB 1 2d SkyB MediumFast 2025-12-17 09:58:17 UTC View
Eagle’s Nest (EAGL) +1.242s
After 		-112.0 dBm -2.00 dB 3 a4 Raq1 MediumFast 2025-12-17 09:58:18 UTC View
Meshtastic 1760 (1760) +2.722s
After 		-118.0 dBm -2.00 dB 3 f5 RPT4 MediumFast 2025-12-17 09:58:19 UTC View
Meshtastic 18a4 (18a4) +2.903s
After 		Unknown Unknown 4 60 1760 MediumFast 2025-12-17 09:58:20 UTC View
Wake Up, Neo...📡 (NEO) +3.033s
After 		-91.0 dBm -1.00 dB 4 88 2b88 MediumFast 2025-12-17 09:58:20 UTC View
Ocumare Norte🗼🌐 (RRN) +3.427s
After 		-64.0 dBm 10.75 dB 4 98 TCLB MediumFast 2025-12-17 09:58:20 UTC View
ETH Maverick (ET01) +8.470s
After 		-93.0 dBm 5.75 dB 4 72 Knb1 MediumFast 2025-12-17 09:58:25 UTC View
14

Total Receptions

14

Unique Gateways