Packet #27785326 Success

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

9
Total Receptions
9
Unique Gateways
2
Hop Count
80
Payload Bytes
Packet Information
Database ID: 27785326
Mesh Packet ID: 0x372eeee0
Used for correlation across gateways
Timestamp: 2025-12-15 08:56:31 UTC
From Node: Alnitak 🗼🌞 (Alk)
To Node: Sierra norte Madrid ⛰️🗼🌞 (SNM)
Success: Processed
Protocol: NODEINFO_APP
Port: 4
Gateway: ETH Goose (ET03)
Channel: MediumFast
RSSI: -28 dBm
SNR: 11.0 dBm
Hop Info: 2/4 hops
Start: 4, Limit: 2
Relay Node: 41 ET01
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: 80 bytes
Decoded: Yes
Decoded Data:
Long Name:Alnitak 🗼🌞
Short Name:Alk
Node ID:!eabf44b4
MAC Address:ydzqv0S0
Hardware:NRF52_PROMICRO_DIY
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:80 bytes
Gateway:!909ec2ec
Channel:MediumFast
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 !909ec2ec
Node ID format
channel_id MediumFast
packet MeshPacket (80 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 3938403508
Source node ID 		uint32
to 1129719940
Target node ID 		uint32
decoded.portnum 4
NODEINFO_APP 		enum
decoded.payload_length 80 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 -28.0 dBm
Signal strength at gateway 		int32
rx_snr 11.00 dB
Signal quality at gateway 		float
rx_time 1765788987
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 65
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1765788991.7412407
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 (2 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !909ec2ec
Signal Metrics: RSSI: -28.0 dBm
SNR: 11.00 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:NODEINFO_APP
Size:80 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "id": "!eabf44b4", "long_name": "Alnitak 🗼🌞", "short_name": "Alk", "macaddr": "ydzqv0S0", "hw_model": "NRF52_PROMICRO_DIY" }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!909ec2ec", "channel_id": "MediumFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3938403508, "to": 1129719940, "id": 925822688, "rx_time": 1765788987, "rx_snr": 11.0, "rx_rssi": -28, "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": 65, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a092165616266343462341210416c6e6974616b20f09f97bcf09f8c9e1a03416c6b2206c9dceabf44b4283f42206c6bf9a55127a0e9462b92207ef69b42350c418af6f6a3ff163eef6175e4d87b4801", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!eabf44b4", "long_name": "Alnitak 🗼🌞", "short_name": "Alk", "macaddr": "ydzqv0S0", "hw_model": "NRF52_PROMICRO_DIY", "public_key": "bGv5pVEnoOlGK5IgfvabQjUMQYr29qP/Fj7vYXXk2Hs=", "is_unmessagable": true, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }
Raw Packet Data (80 bytes)
0a092165616266343462341210416c6e6974616b20f09f97bcf09f8c9e1a03416c6b2206c9dceabf44b4283f42206c6bf9a55127a0e9462b92207ef69b42350c418af6f6a3ff163eef6175e4d87b4801
Hex Analysis:
Size:80 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
ETH Goose (ET03) Primary 0.000s
Reference 		-28.0 dBm 11.00 dB 2 41 ET01 MediumFast 2025-12-15 08:56:31 UTC Current
Venturada2 🗼🌞 (Vb2) -6.690s
Before 		-96.0 dBm -0.50 dB 0 b4 Alk MediumFast 2025-12-15 08:56:25 UTC View
NodeJPL6 (JPL6) -4.587s
Before 		-100.0 dBm -12.75 dB 1 b0 Vb2 MediumFast 2025-12-15 08:56:27 UTC View
🎄 SkG@Home 📡🌐 (SkGH) -3.385s
Before 		-99.0 dBm -12.25 dB 1 61 TO1 MediumFast 2025-12-15 08:56:28 UTC View
ETH Maverick (ET01) -0.938s
Before 		-107.0 dBm -5.25 dB 1 61 TO1 MediumFast 2025-12-15 08:56:30 UTC View
Eagle’s Nest (EAGL) +0.215s
After 		-115.0 dBm -5.50 dB 2 74 MediumFast 2025-12-15 08:56:31 UTC View
PXT_Home (PXT1) +1.075s
After 		-110.0 dBm -3.75 dB 4 48 mfms MediumFast 2025-12-15 08:56:32 UTC View
Justicia Meshtastic b0e4 🏢 (b0e4) +8.355s
After 		-116.0 dBm -10.50 dB 3 25 🌇 MediumFast 2025-12-15 08:56:40 UTC View
Quass001 ☄️ (Q001) +14.420s
After 		-51.0 dBm 10.75 dB 3 3a Q005 MediumFast 2025-12-15 08:56:46 UTC View
9

Total Receptions

9

Unique Gateways