Packet #39456119 Success

NODEINFO_APP packet from Mechanicus Alpha (M1) to !ffffffff

45
Total Receptions
1
Unique Gateways
0
Hop Count
81
Payload Bytes
Packet Information
Database ID: 39456119
Mesh Packet ID: 0x8679f6cb
Used for correlation across gateways
Timestamp: 2026-05-16 05:54:23 UTC
From Node: Mechanicus Alpha (M1)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: NODEINFO_APP
Port: 4
Gateway: Mechanicus Alpha (M1)
Channel: ShortFast
RSSI: Unknown
SNR: Unknown
Hop Info: 0/7 hops
Start: 7, Limit: 7
Relay Node: 8c M1
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: 81 bytes
Decoded: Yes
Decoded Data:
Long Name:Mechanicus Alpha
Short Name:M1
Node ID:!433e868c
MAC Address:SMpDPoaM
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:81 bytes
Gateway:!433e868c
Channel:ShortFast
Payload Type:NODEINFO_APP
Hop Count:Unknown / 7
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
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !433e868c
Node ID format
channel_id ShortFast
packet MeshPacket (81 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 1128171148
Source node ID
uint32
to 4294967295 (Broadcast)
Visible to all nodes
uint32
decoded.portnum 4
NODEINFO_APP
enum
decoded.payload_length 81 bytes size
hop_limit 7
Remaining hops allowed
uint32
hop_start 7
Initial hop limit
uint32
hops_taken 0
Calculated: hop_start - hop_limit
derived
rx_rssi Not set int32
rx_snr Not set float
rx_time 1778910860
Receive timestamp
fixed32
via_mqtt False
Direct LoRa transmission
bool
want_ack False
No ACK requested
bool
priority 10
Packet priority level
enum
delayed Not set enum
channel Not set uint32
pki_encrypted False
Standard encryption
bool
next_hop Not set uint32
relay_node 140
Relay node ID
uint32
tx_after Not set uint32
timestamp 1778910863.50868
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
MQTT-Specific Fields
Gateway ID: !433e868c
Zero Hop Policy: Enabled
Direct gateway connection
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:NODEINFO_APP
Size:81 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "id": "!433e868c", "long_name": "Mechanicus Alpha", "short_name": "M1", "macaddr": "SMpDPoaM", "hw_model": "HELTEC_V3" }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!433e868c", "channel_id": "ShortFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1128171148, "to": 4294967295, "id": 2256139979, "rx_time": 1778910860, "rx_snr": 0.0, "rx_rssi": 0, "hop_limit": 7, "hop_start": 7, "via_mqtt": false, "want_ack": false, "priority": 10, "delayed": 0, "channel_index": null, "pki_encrypted": false, "next_hop": 0, "relay_node": 140, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a0921343333653836386312104d656368616e6963757320416c7068611a024d31220648ca433e868c282b380c4220c4ee6886cd603238dade21bdb0d69b89907534e6fdb42ad447ff829cea67a07f4801", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!433e868c", "long_name": "Mechanicus Alpha", "short_name": "M1", "macaddr": "SMpDPoaM", "hw_model": "HELTEC_V3", "role": "CLIENT_BASE", "public_key": "xO5ohs1gMjja3iG9sNabiZB1NOb9tCrUR/+CnOpnoH8=", "is_unmessagable": true, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }
Raw Packet Data (81 bytes)
0a0921343333653836386312104d656368616e6963757320416c7068611a024d31220648ca433e868c282b380c4220c4ee6886cd603238dade21bdb0d69b89907534e6fdb42ad447ff829cea67a07f4801
Hex Analysis:
Size:81 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
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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
Mechanicus Alpha (M1) Primary 0.000s
Reference
Unknown Unknown 0 8c M1 ShortFast 2026-05-16 05:54:23 UTC Current
Mechanicus Alpha (M1) -1.011s
Before
Unknown Unknown 0 8c M1 LongFast 2026-05-16 05:54:22 UTC View
Mechanicus Alpha (M1) -0.989s
Before
Unknown Unknown 0 8c M1 LongFast 2026-05-16 05:54:22 UTC View
Mechanicus Alpha (M1) -0.968s
Before
Unknown Unknown 0 8c M1 LongFast 2026-05-16 05:54:22 UTC View
Mechanicus Alpha (M1) -0.948s
Before
Unknown Unknown 0 8c M1 LongFast 2026-05-16 05:54:22 UTC View
Mechanicus Alpha (M1) -0.927s
Before
Unknown Unknown 0 8c M1 LongFast 2026-05-16 05:54:22 UTC View
Mechanicus Alpha (M1) -0.903s
Before
Unknown Unknown 0 8c M1 LongFast 2026-05-16 05:54:22 UTC View
Mechanicus Alpha (M1) -0.880s
Before
Unknown Unknown 0 8c M1 LongFast 2026-05-16 05:54:22 UTC View
Mechanicus Alpha (M1) -0.857s
Before
Unknown Unknown 0 8c M1 LongFast 2026-05-16 05:54:22 UTC View
Mechanicus Alpha (M1) -0.834s
Before
Unknown Unknown 0 8c M1 LongFast 2026-05-16 05:54:22 UTC View
Mechanicus Alpha (M1) -0.813s
Before
Unknown Unknown 0 8c M1 LongFast 2026-05-16 05:54:22 UTC View
Mechanicus Alpha (M1) -0.776s
Before
Unknown Unknown 0 8c M1 LongFast 2026-05-16 05:54:22 UTC View
Mechanicus Alpha (M1) -0.755s
Before
Unknown Unknown 0 8c M1 MediumFast 2026-05-16 05:54:22 UTC View
Mechanicus Alpha (M1) -0.734s
Before
Unknown Unknown 0 8c M1 MediumFast 2026-05-16 05:54:22 UTC View
Mechanicus Alpha (M1) -0.711s
Before
Unknown Unknown 0 8c M1 MediumFast 2026-05-16 05:54:22 UTC View
Mechanicus Alpha (M1) -0.687s
Before
Unknown Unknown 0 8c M1 MediumFast 2026-05-16 05:54:22 UTC View
Mechanicus Alpha (M1) -0.664s
Before
Unknown Unknown 0 8c M1 MediumFast 2026-05-16 05:54:22 UTC View
Mechanicus Alpha (M1) -0.640s
Before
Unknown Unknown 0 8c M1 MediumFast 2026-05-16 05:54:22 UTC View
Mechanicus Alpha (M1) -0.618s
Before
Unknown Unknown 0 8c M1 MediumFast 2026-05-16 05:54:22 UTC View
Mechanicus Alpha (M1) -0.597s
Before
Unknown Unknown 0 8c M1 MediumFast 2026-05-16 05:54:22 UTC View
Mechanicus Alpha (M1) -0.575s
Before
Unknown Unknown 0 8c M1 MediumFast 2026-05-16 05:54:22 UTC View
Mechanicus Alpha (M1) -0.553s
Before
Unknown Unknown 0 8c M1 MediumFast 2026-05-16 05:54:22 UTC View
Mechanicus Alpha (M1) -0.529s
Before
Unknown Unknown 0 8c M1 MediumFast 2026-05-16 05:54:22 UTC View
Mechanicus Alpha (M1) -0.505s
Before
Unknown Unknown 0 8c M1 ShortFast 2026-05-16 05:54:23 UTC View
Mechanicus Alpha (M1) -0.482s
Before
Unknown Unknown 0 8c M1 ShortFast 2026-05-16 05:54:23 UTC View
Mechanicus Alpha (M1) -0.458s
Before
Unknown Unknown 0 8c M1 ShortFast 2026-05-16 05:54:23 UTC View
Mechanicus Alpha (M1) -0.436s
Before
Unknown Unknown 0 8c M1 ShortFast 2026-05-16 05:54:23 UTC View
Mechanicus Alpha (M1) -0.407s
Before
Unknown Unknown 0 8c M1 ShortFast 2026-05-16 05:54:23 UTC View
Mechanicus Alpha (M1) -0.378s
Before
Unknown Unknown 0 8c M1 ShortFast 2026-05-16 05:54:23 UTC View
Mechanicus Alpha (M1) -0.358s
Before
Unknown Unknown 0 8c M1 ShortFast 2026-05-16 05:54:23 UTC View
Mechanicus Alpha (M1) -0.020s
Before
Unknown Unknown 0 8c M1 ShortFast 2026-05-16 05:54:23 UTC View
Mechanicus Alpha (M1) +0.021s
After
Unknown Unknown 0 8c M1 ShortFast 2026-05-16 05:54:23 UTC View
Mechanicus Alpha (M1) +0.047s
After
Unknown Unknown 0 8c M1 ShortFast 2026-05-16 05:54:23 UTC View
Mechanicus Alpha (M1) +0.078s
After
Unknown Unknown 0 8c M1 ShortTurbo 2026-05-16 05:54:23 UTC View
Mechanicus Alpha (M1) +0.101s
After
Unknown Unknown 0 8c M1 ShortTurbo 2026-05-16 05:54:23 UTC View
Mechanicus Alpha (M1) +0.122s
After
Unknown Unknown 0 8c M1 ShortTurbo 2026-05-16 05:54:23 UTC View
Mechanicus Alpha (M1) +0.566s
After
Unknown Unknown 0 8c M1 ShortTurbo 2026-05-16 05:54:24 UTC View
Mechanicus Alpha (M1) +0.587s
After
Unknown Unknown 0 8c M1 ShortTurbo 2026-05-16 05:54:24 UTC View
Mechanicus Alpha (M1) +0.607s
After
Unknown Unknown 0 8c M1 ShortTurbo 2026-05-16 05:54:24 UTC View
Mechanicus Alpha (M1) +0.628s
After
Unknown Unknown 0 8c M1 ShortTurbo 2026-05-16 05:54:24 UTC View
Mechanicus Alpha (M1) +0.649s
After
Unknown Unknown 0 8c M1 ShortTurbo 2026-05-16 05:54:24 UTC View
Mechanicus Alpha (M1) +0.671s
After
Unknown Unknown 0 8c M1 ShortTurbo 2026-05-16 05:54:24 UTC View
Mechanicus Alpha (M1) +0.695s
After
Unknown Unknown 0 8c M1 ShortTurbo 2026-05-16 05:54:24 UTC View
Mechanicus Alpha (M1) +0.718s
After
Unknown Unknown 0 8c M1 ShortTurbo 2026-05-16 05:54:24 UTC View
Mechanicus Alpha (M1) +0.740s
After
Unknown Unknown 0 8c M1 LongFast 2026-05-16 05:54:24 UTC View
45

Total Receptions

1

Unique Gateways