Packet #16121280 Success

NODEINFO_APP packet from SZAO c582 (c582) to !ffffffff

3
Total Receptions
3
Unique Gateways
6
Hop Count
74
Payload Bytes
Packet Information
Database ID: 16121280
Mesh Packet ID: 0x49327417
Used for correlation across gateways
Timestamp: 2026-04-21 22:54:55 UTC
From Node: SZAO c582 (c582)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: NODEINFO_APP
Port: 4
Gateway: Aster-02 (AST2)
Channel: MediumFast
RSSI: -56 dBm
SNR: 10.75 dBm
Hop Info: 6/7 hops
Start: 7, Limit: 1
Payload Data
Protocol: NODEINFO_APP
Size: 74 bytes
Decoded: Yes
Decoded Data:
Long Name:SZAO c582
Short Name:c582
Node ID:!cd15c582
MAC Address:9l7NFcWC
Hardware:HELTEC_MESH_NODE_T114
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:74 bytes
Gateway:!b2a78a88
Channel:MediumFast
Payload Type:NODEINFO_APP
Hop Count:6 / 7
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 !b2a78a88
Node ID format
channel_id MediumFast
packet MeshPacket (74 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 3440756098
Source node ID 		uint32
to 4294967295 (Broadcast)
Visible to all nodes 		uint32
decoded.portnum 4
NODEINFO_APP 		enum
decoded.payload_length 74 bytes size
hop_limit 1
Remaining hops allowed 		uint32
hop_start 7
Initial hop limit 		uint32
hops_taken 6
Calculated: hop_start - hop_limit 		derived
rx_rssi -56.0 dBm
Signal strength at gateway 		int32
rx_snr 10.75 dB
Signal quality at gateway 		float
rx_time 1776801295
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 44
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1776801295.8750806
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 (6 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !b2a78a88
Signal Metrics: RSSI: -56.0 dBm
SNR: 10.75 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:NODEINFO_APP
Size:74 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "id": "!cd15c582", "long_name": "SZAO c582", "short_name": "c582", "macaddr": "9l7NFcWC", "hw_model": "HELTEC_MESH_NODE_T114" }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!b2a78a88", "channel_id": "MediumFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3440756098, "to": 4294967295, "id": 1228043287, "rx_time": 1776801295, "rx_snr": 10.75, "rx_rssi": -56, "hop_limit": 1, "hop_start": 7, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 44, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a092163643135633538321209535a414f20633538321a04633538322206f65ecd15c58228454220dd365054cd1c936a7e1ac3758f5a0b603dcd1574a783a0e324d1bc0daaec511f4800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!cd15c582", "long_name": "SZAO c582", "short_name": "c582", "macaddr": "9l7NFcWC", "hw_model": "HELTEC_MESH_NODE_T114", "public_key": "3TZQVM0ck2p+GsN1j1oLYD3NFXSng6DjJNG8DarsUR8=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }
Raw Packet Data (74 bytes)
0a092163643135633538321209535a414f20633538321a04633538322206f65ecd15c58228454220dd365054cd1c936a7e1ac3758f5a0b603dcd1574a783a0e324d1bc0daaec511f4800
Hex Analysis:
Size:74 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
Aster-02 (AST2) Primary 0.000s
Reference 		-56.0 dBm 10.75 dB 6 MediumFast 2026-04-21 22:54:55 Current
SYSXX YGW8 (SXY8) -16.724s
Before 		Unknown 11.25 dB 0 MediumFast 2026-04-21 22:54:39 View
RN3ABX Georgy 2 (ABX2) -13.139s
Before 		-115.0 dBm -3.50 dB 1 MediumFast 2026-04-21 22:54:42 View
3

Total Receptions

3

Unique Gateways