Packet #28058827 Success

NODEINFO_APP packet from Karman’s Box Solar 0️⃣🗼 (1337) to !ffffffff

9
Total Receptions
9
Unique Gateways
2
Hop Count
100
Payload Bytes
Packet Information
Database ID: 28058827
Mesh Packet ID: 0xc4cd9bfe
Used for correlation across gateways
Timestamp: 2025-12-16 14:19:49 UTC
From Node: Karman’s Box Solar 0️⃣🗼 (1337)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: NODEINFO_APP
Port: 4
Gateway: EAL Station 1 🗼🌐 (EAL1)
Channel: MediumFast
RSSI: -111 dBm
SNR: -4.75 dBm
Hop Info: 2/5 hops
Start: 5, Limit: 3
Relay Node: a4 📍 , NOD4
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: 100 bytes
Decoded: Yes
Decoded Data:
Long Name:Karman’s Box Solar 0️⃣🗼
Short Name:1337
Node ID:!4b411337
MAC Address:5nGE2ogu
Hardware:PRIVATE_HW
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:100 bytes
Gateway:!7c5ac2c4
Channel:MediumFast
Payload Type:NODEINFO_APP
Hop Count:2 / 5
Privacy Summary
Exposure Level:
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: MediumFast
+ 1 more...
Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers
+ 2 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !7c5ac2c4
Node ID format
channel_id MediumFast
packet MeshPacket (100 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 1262555959
Source node ID 		uint32
to 4294967295 (Broadcast)
Visible to all nodes 		uint32
decoded.portnum 4
NODEINFO_APP 		enum
decoded.payload_length 100 bytes size
hop_limit 3
Remaining hops allowed 		uint32
hop_start 5
Initial hop limit 		uint32
hops_taken 2
Calculated: hop_start - hop_limit 		derived
rx_rssi -111.0 dBm
Signal strength at gateway 		int32
rx_snr -4.75 dB
Signal quality at gateway 		float
rx_time 1765894787
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 164
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1765894789.0633712
Unix timestamp 		uint32
MQTT Privacy & Exposure Analysis

Analysis of privacy features and exposure risks when packet is shared via MQTT

Exposure Level: Broadcast
Privacy Features:
  • ✓ Direct LoRa transmission (not via MQTT)
  • ✓ Custom channel: MediumFast
  • ✓ Gateway node ID tracked
Exposure Risks:
  • ⚠ Visible to all nodes on channel
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ Multi-hop path visible (2 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !7c5ac2c4
Signal Metrics: RSSI: -111.0 dBm
SNR: -4.75 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:NODEINFO_APP
Size:100 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "id": "!4b411337", "long_name": "Karman’s Box Solar 0️⃣🗼", "short_name": "1337", "macaddr": "5nGE2ogu", "hw_model": "PRIVATE_HW" }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!7c5ac2c4", "channel_id": "MediumFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1262555959, "to": 4294967295, "id": 3301809150, "rx_time": 1765894787, "rx_snr": -4.75, "rx_rssi": -111, "hop_limit": 3, "hop_start": 5, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 164, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a0921346234313133333712204b61726d616ee280997320426f7820536f6c61722030efb88fe283a3f09f97bc1a04313333372206e67184da882e28ff0138064220bb2dcef60ccd907bc4a19a070a108d825502dcc9a7a2b4c5318906e79386ce3f4801", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!4b411337", "long_name": "Karman’s Box Solar 0️⃣🗼", "short_name": "1337", "macaddr": "5nGE2ogu", "hw_model": "PRIVATE_HW", "role": "SENSOR", "public_key": "uy3O9gzNkHvEoZoHChCNglUC3MmnorTFMYkG55OGzj8=", "is_unmessagable": true, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }
Raw Packet Data (100 bytes)
0a0921346234313133333712204b61726d616ee280997320426f7820536f6c61722030efb88fe283a3f09f97bc1a04313333372206e67184da882e28ff0138064220bb2dcef60ccd907bc4a19a070a108d825502dcc9a7a2b4c5318906e79386ce3f4801
Hex Analysis:
Size:100 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
EAL Station 1 🗼🌐 (EAL1) Primary 0.000s
Reference 		-111.0 dBm -4.75 dB 2 a4 📍 , NOD4 MediumFast 2025-12-16 14:19:49 UTC Current
Karman’s HeltecV4 Beta (KHV4) -5.733s
Before 		-52.0 dBm 10.50 dB 0 37 1337 MediumFast 2025-12-16 14:19:43 UTC View
JP Terraza (JPT1) -5.354s
Before 		-98.0 dBm 3.25 dB 0 37 KTS1 , 1337 MediumFast 2025-12-16 14:19:43 UTC View
Jorge LR0 (JLR0) -3.685s
Before 		-116.0 dBm -9.00 dB 2 37 KTS1 MediumFast 2025-12-16 14:19:45 UTC View
🐰🗼 (📡) -2.685s
Before 		-45.0 dBm 11.00 dB 3 61 📟 MediumFast 2025-12-16 14:19:46 UTC View
EA5WA TRASTERO (WA01) -0.033s
Before 		-111.0 dBm -4.25 dB 2 a4 📍 , NOD4 MediumFast 2025-12-16 14:19:49 UTC View
San_Pablo🗼 (SP00) +2.097s
After 		-110.0 dBm -5.00 dB 3 64 WA01 MediumFast 2025-12-16 14:19:51 UTC View
DULCINEA Albacete (LUIS) +3.804s
After 		-115.0 dBm -9.75 dB 3 64 WA01 MediumFast 2025-12-16 14:19:52 UTC View
Albacete_01 🛜 (Ab01) +8.009s
After 		-107.0 dBm -6.25 dB 5 54 📍 MediumFast 2025-12-16 14:19:57 UTC View
9

Total Receptions

9

Unique Gateways