Packet #2518241 Success

NODEINFO_APP packet from Meshtastic 8a94 (8a94) to !ffffffff

1
Total Receptions
1
Unique Gateways
0
Hop Count
80
Payload Bytes
Packet Information
Database ID: 2518241
Mesh Packet ID: 0xf4d75c35
Used for correlation across gateways
Timestamp: 2026-03-26 15:25:11 UTC
From Node: Meshtastic 8a94 (8a94)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: NODEINFO_APP
Port: 4
Gateway: BSBK28 LZ1S/r SWATbg 🇧🇬 🏣 (PAPA)
Channel: ShortFast
RSSI: -96 dBm
SNR: -2.0 dBm
Hop Info: 0/2 hops
Start: 2, Limit: 2
Relay Node: 84 Nik
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:Meshtastic 8a94
Short Name:8a94
Node ID:!b2a78a94
MAC Address:gPGyp4qU
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:80 bytes
Gateway:!b2a73028
Channel:ShortFast
Payload Type:NODEINFO_APP
Hop Count:Unknown / 2
Privacy Summary
Exposure Level:
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: ShortFast
+ 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 !b2a73028
Node ID format
channel_id ShortFast
packet MeshPacket (80 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 2997324436
Source node ID 		uint32
to 4294967295 (Broadcast)
Visible to all nodes 		uint32
decoded.portnum 4
NODEINFO_APP 		enum
decoded.payload_length 80 bytes size
hop_limit 2
Remaining hops allowed 		uint32
hop_start 2
Initial hop limit 		uint32
hops_taken 0
Calculated: hop_start - hop_limit 		derived
rx_rssi -96.0 dBm
Signal strength at gateway 		int32
rx_snr -2.00 dB
Signal quality at gateway 		float
rx_time 1774538710
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 132
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1774538711.622151
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: ShortFast
  • ✓ 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: !b2a73028
Zero Hop Policy: Enabled
Direct gateway connection
Signal Metrics: RSSI: -96.0 dBm
SNR: -2.00 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": "!b2a78a94", "long_name": "Meshtastic 8a94", "short_name": "8a94", "macaddr": "gPGyp4qU", "hw_model": "HELTEC_V4" }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!b2a73028", "channel_id": "ShortFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2997324436, "to": 4294967295, "id": 4107754549, "rx_time": 1774538710, "rx_snr": -2.0, "rx_rssi": -96, "hop_limit": 2, "hop_start": 2, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 132, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09216232613738613934120f4d65736874617374696320386139341a0438613934220680f1b2a78a94286e4220d8a8ec2bce43d87cf7403c6240a9c15b3b34bf0d27d38954b67df89cb54806634800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!b2a78a94", "long_name": "Meshtastic 8a94", "short_name": "8a94", "macaddr": "gPGyp4qU", "hw_model": "HELTEC_V4", "public_key": "2KjsK85D2Hz3QDxiQKnBWzs0vw0n04lUtn34nLVIBmM=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }
Raw Packet Data (80 bytes)
0a09216232613738613934120f4d65736874617374696320386139341a0438613934220680f1b2a78a94286e4220d8a8ec2bce43d87cf7403c6240a9c15b3b34bf0d27d38954b67df89cb54806634800
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
Gateway Time Offset RSSI SNR Hops Relay Channel Timestamp Actions
BSBK28 LZ1S/r SWATbg 🇧🇬 🏣 (PAPA) Primary 0.000s
Reference 		-96.0 dBm -2.00 dB 0 84 Nik ShortFast 2026-03-26 15:25:11 UTC Current
No other receptions found within ±2 seconds
1

Total Receptions

1

Unique Gateways