Packet #40728733 Success

NODEINFO_APP packet from VE2DID a540 (2DID) to !bc26359b

45
Total Receptions
1
Unique Gateways
1
Hop Count
76
Payload Bytes
Packet Information
Database ID: 40728733
Mesh Packet ID: 0x8ca786b0
Used for correlation across gateways
Timestamp: 2026-05-19 09:45:29 UTC
From Node: VE2DID a540 (2DID)
To Node: !bc26359b (359b)
Success: Processed
Protocol: NODEINFO_APP
Port: 4
Gateway: ❄ qcmesh.net 1130 (1130)
Channel: LongFast
RSSI: -77 dBm
SNR: 7.5 dBm
Hop Info: 1/3 hops
Start: 3, Limit: 2
Relay Node: None
Payload Data
Protocol: NODEINFO_APP
Size: 76 bytes
Decoded: Yes
Decoded Data:
Long Name:VE2DID a540
Short Name:2DID
Node ID:!6985a540
MAC Address:kHBphaVA
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:76 bytes
Gateway:!a20a1130
Channel:LongFast
Payload Type:NODEINFO_APP
Hop Count:1 / 3
Privacy Summary
Exposure Level:
Direct Message
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Targeted to specific node
+ 1 more...
Exposure Risks:
⚠ Default channel - no encryption
⚠ Packet visible to MQTT subscribers
+ 2 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !a20a1130
Node ID format
channel_id LongFast
Default public channel
packet MeshPacket (76 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 1770366272
Source node ID
uint32
to 3156620699
Target node ID
uint32
decoded.portnum 4
NODEINFO_APP
enum
decoded.payload_length 76 bytes size
hop_limit 2
Remaining hops allowed
uint32
hop_start 3
Initial hop limit
uint32
hops_taken 1
Calculated: hop_start - hop_limit
derived
rx_rssi -77.0 dBm
Signal strength at gateway
int32
rx_snr 7.50 dB
Signal quality at gateway
float
rx_time 1779183928
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 Not set uint32
tx_after Not set uint32
timestamp 1779183929.937165
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
Exposure Risks:
  • ⚠ Default channel - no encryption
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ Multi-hop path visible (1 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !a20a1130
Signal Metrics: RSSI: -77.0 dBm
SNR: 7.50 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:NODEINFO_APP
Size:76 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "id": "!6985a540", "long_name": "VE2DID a540", "short_name": "2DID", "macaddr": "kHBphaVA", "hw_model": "HELTEC_V4" }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!a20a1130", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1770366272, "to": 3156620699, "id": 2359789232, "rx_time": 1779183928, "rx_snr": 7.5, "rx_rssi": -77, "hop_limit": 2, "hop_start": 3, "via_mqtt": false, "want_ack": false, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": false, "next_hop": 0, "relay_node": 0, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09213639383561353430120b56453244494420613534301a0432444944220690706985a540286e4220d2e395a23c6bdcca315d9adab818dae962122906bc376387dee6f40536af92254800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!6985a540", "long_name": "VE2DID a540", "short_name": "2DID", "macaddr": "kHBphaVA", "hw_model": "HELTEC_V4", "public_key": "0uOVojxr3MoxXZrauBja6WISKQa8N2OH3ub0BTavkiU=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }
Raw Packet Data (76 bytes)
0a09213639383561353430120b56453244494420613534301a0432444944220690706985a540286e4220d2e395a23c6bdcca315d9adab818dae962122906bc376387dee6f40536af92254800
Hex Analysis:
Size:76 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...

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
❄ qcmesh.net 1130 (1130) Primary 0.000s
Reference
-77.0 dBm 7.50 dB 1 - LongFast 2026-05-19 09:45:29 UTC Current
❄ qcmesh.net 1130 (1130) -0.187s
Before
-77.0 dBm 7.50 dB 1 - LongFast 2026-05-19 09:45:29 UTC View
❄ qcmesh.net 1130 (1130) -0.161s
Before
-77.0 dBm 7.50 dB 1 - LongFast 2026-05-19 09:45:29 UTC View
❄ qcmesh.net 1130 (1130) -0.122s
Before
-77.0 dBm 7.50 dB 1 - LongFast 2026-05-19 09:45:29 UTC View
❄ qcmesh.net 1130 (1130) -0.096s
Before
-77.0 dBm 7.50 dB 1 - LongFast 2026-05-19 09:45:29 UTC View
❄ qcmesh.net 1130 (1130) -0.071s
Before
-77.0 dBm 7.50 dB 1 - LongFast 2026-05-19 09:45:29 UTC View
❄ qcmesh.net 1130 (1130) -0.048s
Before
-77.0 dBm 7.50 dB 1 - LongFast 2026-05-19 09:45:29 UTC View
❄ qcmesh.net 1130 (1130) -0.022s
Before
-77.0 dBm 7.50 dB 1 - LongFast 2026-05-19 09:45:29 UTC View
❄ qcmesh.net 1130 (1130) +0.023s
After
-77.0 dBm 7.50 dB 1 - LongFast 2026-05-19 09:45:29 UTC View
❄ qcmesh.net 1130 (1130) +0.046s
After
-77.0 dBm 7.50 dB 1 - LongFast 2026-05-19 09:45:29 UTC View
❄ qcmesh.net 1130 (1130) +0.073s
After
-77.0 dBm 7.50 dB 1 - LongFast 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.096s
After
-77.0 dBm 7.50 dB 1 - MediumFast 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.119s
After
-77.0 dBm 7.50 dB 1 - MediumFast 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.140s
After
-77.0 dBm 7.50 dB 1 - MediumFast 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.162s
After
-77.0 dBm 7.50 dB 1 - MediumFast 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.184s
After
-77.0 dBm 7.50 dB 1 - MediumFast 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.205s
After
-77.0 dBm 7.50 dB 1 - MediumFast 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.229s
After
-77.0 dBm 7.50 dB 1 - MediumFast 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.254s
After
-77.0 dBm 7.50 dB 1 - MediumFast 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.278s
After
-77.0 dBm 7.50 dB 1 - MediumFast 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.302s
After
-77.0 dBm 7.50 dB 1 - MediumFast 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.324s
After
-77.0 dBm 7.50 dB 1 - MediumFast 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.343s
After
-77.0 dBm 7.50 dB 1 - ShortFast 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.366s
After
-77.0 dBm 7.50 dB 1 - ShortFast 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.387s
After
-77.0 dBm 7.50 dB 1 - ShortFast 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.412s
After
-77.0 dBm 7.50 dB 1 - ShortFast 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.434s
After
-77.0 dBm 7.50 dB 1 - ShortFast 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.458s
After
-77.0 dBm 7.50 dB 1 - ShortFast 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.481s
After
-77.0 dBm 7.50 dB 1 - ShortFast 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.503s
After
-77.0 dBm 7.50 dB 1 - ShortFast 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.525s
After
-77.0 dBm 7.50 dB 1 - ShortFast 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.547s
After
-77.0 dBm 7.50 dB 1 - ShortFast 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.568s
After
-77.0 dBm 7.50 dB 1 - ShortFast 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.593s
After
-77.0 dBm 7.50 dB 1 - ShortTurbo 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.617s
After
-77.0 dBm 7.50 dB 1 - ShortTurbo 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.641s
After
-77.0 dBm 7.50 dB 1 - ShortTurbo 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.664s
After
-77.0 dBm 7.50 dB 1 - ShortTurbo 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.686s
After
-77.0 dBm 7.50 dB 1 - ShortTurbo 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.708s
After
-77.0 dBm 7.50 dB 1 - ShortTurbo 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.735s
After
-77.0 dBm 7.50 dB 1 - ShortTurbo 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.757s
After
-77.0 dBm 7.50 dB 1 - ShortTurbo 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.782s
After
-77.0 dBm 7.50 dB 1 - ShortTurbo 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.806s
After
-77.0 dBm 7.50 dB 1 - ShortTurbo 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.830s
After
-77.0 dBm 7.50 dB 1 - ShortTurbo 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.854s
After
-77.0 dBm 7.50 dB 1 - LongFast 2026-05-19 09:45:30 UTC View
45

Total Receptions

1

Unique Gateways