Packet #1355426 Success

NODEINFO_APP packet from SDT 0018 (0018) to rjeli (🪼)

3
Total Receptions
3
Unique Gateways
0
Hop Count
73
Payload Bytes
Packet Information
Database ID: 1355426
Mesh Packet ID: 0xedf30dc5
Used for correlation across gateways
Timestamp: 2025-10-29 00:57:52 UTC
From Node: SDT 0018 (0018)
To Node: rjeli (🪼)
Success: Processed
Protocol: NODEINFO_APP
Port: 4
Gateway: SDT 2507 (2507)
Channel: LongFast
RSSI: Unknown
SNR: 6.0 dBm
Hop Info: 0/3 hops
Start: 3, Limit: 3
Relay Node: 18 0018
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: 73 bytes
Decoded: Yes
Decoded Data:
Long Name:SDT 0018
Short Name:0018
Node ID:!b2a70018
MAC Address:gPGypwAY
Hardware:HELTEC_V4
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:73 bytes
Gateway:!dd462507
Channel:LongFast
Payload Type:NODEINFO_APP
Hop Count:Unknown / 3
Privacy Summary
Exposure Level:
Direct Message
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Targeted to specific node
+ 2 more...
Exposure Risks:
âš  Default channel - no encryption
âš  Packet visible to MQTT subscribers
+ 1 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !dd462507
Node ID format
channel_id LongFast
Default public channel
packet MeshPacket (73 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 2997288984
Source node ID 		uint32
to 1187199426
Target node ID 		uint32
decoded.portnum 4
NODEINFO_APP 		enum
decoded.payload_length 73 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 Not set int32
rx_snr 6.00 dB
Signal quality at gateway 		float
rx_time 1761699473
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 24
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1761699472.5612307
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
  • ✓ Gateway node ID tracked
  • ✓ Zero-hop: direct from source to MQTT gateway
Exposure Risks:
  • âš  Default channel - no encryption
  • âš  Packet visible to MQTT subscribers
  • âš  RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !dd462507
Zero Hop Policy: Enabled
Direct gateway connection
Signal Metrics: SNR: 6.00 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:NODEINFO_APP
Size:73 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "id": "!b2a70018", "long_name": "SDT 0018", "short_name": "0018", "macaddr": "gPGypwAY", "hw_model": "HELTEC_V4" }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!dd462507", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2997288984, "to": 1187199426, "id": 3992128965, "rx_time": 1761699473, "rx_snr": 6.0, "rx_rssi": 0, "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": 24, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09216232613730303138120853445420303031381a0430303138220680f1b2a70018286e4220a0e2163ae6fdb3df78aa64e5d4e49c62352aac358a021c8bdf5ffa29fff8d91f4800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!b2a70018", "long_name": "SDT 0018", "short_name": "0018", "macaddr": "gPGypwAY", "hw_model": "HELTEC_V4", "public_key": "oOIWOub9s994qmTl1OScYjUqrDWKAhyL31/6Kf/42R8=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }
Raw Packet Data (73 bytes)
0a09216232613730303138120853445420303031381a0430303138220680f1b2a70018286e4220a0e2163ae6fdb3df78aa64e5d4e49c62352aac358a021c8bdf5ffa29fff8d91f4800
Hex Analysis:
Size:73 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
SDT 2507 (2507) Primary 0.000s
Reference 		Unknown 6.00 dB 0 18 0018 LongFast 2025-10-29 00:57:52 UTC Current
1 MW 1 West Side | https://nyme.sh (1MW1) +4.990s
After 		-112.0 dBm -9.50 dB 1 30 ed30 , 3930 LongFast 2025-10-29 00:57:57 UTC View
DRP1 Chelsea (DRP1) +10.360s
After 		-112.0 dBm -11.00 dB 3 80 NLmH , p@bp , BR03 , LOD LongFast 2025-10-29 00:58:02 UTC View
3

Total Receptions

3

Unique Gateways