Packet #27009616 Success

NODEINFO_APP packet from KZ4DD [email protected] (ANS1) to !ffffffff

1
Total Receptions
1
Unique Gateways
0
Hop Count
101
Payload Bytes
Packet Information
Database ID: 27009616
Mesh Packet ID: 0x38586603
Used for correlation across gateways
Timestamp: 2025-12-11 17:05:29 UTC
From Node: KZ4DD [email protected] (ANS1)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: NODEINFO_APP
Port: 4
Gateway: OraCle-1 (OrC1)
Channel: MediumFast
RSSI: -39 dBm
SNR: 13.75 dBm
Hop Info: 0/3 hops
Start: 3, Limit: 3
Relay Node: 88 ANS1
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: 101 bytes
Decoded: Yes
Decoded Data:
Long Name:KZ4DD [-] ☀️ [email protected]
Short Name:ANS1
Node ID:!849c3988
MAC Address:sIGEnDmI
Hardware:HELTEC_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:101 bytes
Gateway:!6ef961cf
Channel:MediumFast
Payload Type:NODEINFO_APP
Hop Count:Unknown / 3
Privacy Summary
Exposure Level:
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: MediumFast
+ 2 more...
Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers
+ 1 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !6ef961cf
Node ID format
channel_id MediumFast
packet MeshPacket (101 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 2224830856
Source node ID 		uint32
to 4294967295 (Broadcast)
Visible to all nodes 		uint32
decoded.portnum 4
NODEINFO_APP 		enum
decoded.payload_length 101 bytes size
hop_limit 3
Remaining hops allowed 		uint32
hop_start 3
Initial hop limit 		uint32
hops_taken 0
Calculated: hop_start - hop_limit 		derived
rx_rssi -39.0 dBm
Signal strength at gateway 		int32
rx_snr 13.75 dB
Signal quality at gateway 		float
rx_time 1765472573
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 136
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1765472729.0970318
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
  • ✓ Zero-hop: direct from source to MQTT gateway
Exposure Risks:
  • ⚠ Visible to all nodes on channel
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !6ef961cf
Zero Hop Policy: Enabled
Direct gateway connection
Signal Metrics: RSSI: -39.0 dBm
SNR: 13.75 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:NODEINFO_APP
Size:101 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "id": "!849c3988", "long_name": "KZ4DD [-] ☀️ [email protected]", "short_name": "ANS1", "macaddr": "sIGEnDmI", "hw_model": "HELTEC_V3" }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!6ef961cf", "channel_id": "MediumFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2224830856, "to": 4294967295, "id": 945317379, "rx_time": 1765472573, "rx_snr": 13.75, "rx_rssi": -39, "hop_limit": 3, "hop_start": 3, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 136, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a0921383439633339383812244b5a344444205b2d5d20e29880efb88f20696e666f406d6573687461737469632e6575731a04414e53312206b081849c3988282b4220da2b810cf332c9acffe16c735deff9f0ac8d84edca75906eaf3d6d0cb8b988294800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!849c3988", "long_name": "KZ4DD [-] ☀️ [email protected]", "short_name": "ANS1", "macaddr": "sIGEnDmI", "hw_model": "HELTEC_V3", "public_key": "2iuBDPMyyaz/4WxzXe/58KyNhO3KdZBurz1tDLi5iCk=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }
Raw Packet Data (101 bytes)
0a0921383439633339383812244b5a344444205b2d5d20e29880efb88f20696e666f406d6573687461737469632e6575731a04414e53312206b081849c3988282b4220da2b810cf332c9acffe16c735deff9f0ac8d84edca75906eaf3d6d0cb8b988294800
Hex Analysis:
Size:101 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
Gateway Time Offset RSSI SNR Hops Relay Channel Timestamp Actions
OraCle-1 (OrC1) Primary 0.000s
Reference 		-39.0 dBm 13.75 dB 0 88 ANS1 MediumFast 2025-12-11 17:05:29 UTC Current
No other receptions found within ±2 seconds
1

Total Receptions

1

Unique Gateways