Packet #3078 Success

NODEINFO_APP packet from Meshtastic b554 (b554) to !ffffffff

6
Total Receptions
6
Unique Gateways
4
Hop Count
82
Payload Bytes
Packet Information
Database ID: 3078
Mesh Packet ID: 0xe4c213f2
Used for correlation across gateways
Timestamp: 2026-03-13 17:20:40 UTC
From Node: Meshtastic b554 (b554)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: NODEINFO_APP
Port: 4
Gateway: Bryn Mawr Base (BRYN)
Channel: LongFast
RSSI: -104 dBm
SNR: -6.0 dBm
Hop Info: 4/7 hops
Start: 7, Limit: 3
Relay Node: 4a K0b1
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: 82 bytes
Decoded: Yes
Decoded Data:
Long Name:Meshtastic b554
Short Name:b554
Node ID:!2b8eb554
MAC Address:3SErjrVU
Hardware:RAK4631
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:82 bytes
Gateway:!16ced548
Channel:LongFast
Payload Type:NODEINFO_APP
Hop Count:4 / 7
Privacy Summary
Exposure Level:
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Gateway node ID tracked
Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
+ 3 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !16ced548
Node ID format
channel_id LongFast
Default public channel
packet MeshPacket (82 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 730772820
Source node ID 		uint32
to 4294967295 (Broadcast)
Visible to all nodes 		uint32
decoded.portnum 4
NODEINFO_APP 		enum
decoded.payload_length 82 bytes size
hop_limit 3
Remaining hops allowed 		uint32
hop_start 7
Initial hop limit 		uint32
hops_taken 4
Calculated: hop_start - hop_limit 		derived
rx_rssi -104.0 dBm
Signal strength at gateway 		int32
rx_snr -6.00 dB
Signal quality at gateway 		float
rx_time 1773422440
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 74
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1773422440.9397514
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)
  • ✓ Gateway node ID tracked
Exposure Risks:
  • ⚠ Visible to all nodes on channel
  • ⚠ Default channel - no encryption
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ Multi-hop path visible (4 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !16ced548
Signal Metrics: RSSI: -104.0 dBm
SNR: -6.00 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:NODEINFO_APP
Size:82 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "id": "!2b8eb554", "long_name": "Meshtastic b554", "short_name": "b554", "macaddr": "3SErjrVU", "hw_model": "RAK4631" }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!16ced548", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 730772820, "to": 4294967295, "id": 3837924338, "rx_time": 1773422440, "rx_snr": -6.0, "rx_rssi": -104, "hop_limit": 3, "hop_start": 7, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 74, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09213262386562353534120f4d65736874617374696320623535341a04623535342206dd212b8eb5542809380c4220adbbfcc01b6098a29860569a9d5dfc0713bccb4fd4b8ffd2c48e5a488184eb4b4800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!2b8eb554", "long_name": "Meshtastic b554", "short_name": "b554", "macaddr": "3SErjrVU", "hw_model": "RAK4631", "role": "CLIENT_BASE", "public_key": "rbv8wBtgmKKYYFaanV38BxO8y0/UuP/SxI5aSIGE60s=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }
Raw Packet Data (82 bytes)
0a09213262386562353534120f4d65736874617374696320623535341a04623535342206dd212b8eb5542809380c4220adbbfcc01b6098a29860569a9d5dfc0713bccb4fd4b8ffd2c48e5a488184eb4b4800
Hex Analysis:
Size:82 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
Bryn Mawr Base (BRYN) Primary 0.000s
Reference 		-104.0 dBm -6.00 dB 4 4a K0b1 LongFast 2026-03-13 17:20:40 UTC Current
Junco (🐦) -7.436s
Before 		-109.0 dBm -13.50 dB 0 54 b554 LongFast 2026-03-13 17:20:33 UTC View
homebase.mesh.sdr.lol (SDRB) -7.067s
Before 		-117.0 dBm -9.75 dB 0 54 b554 LongFast 2026-03-13 17:20:33 UTC View
LoRaTheExplorer (DSTL) +3.868s
After 		-22.0 dBm 6.25 dB 2 e1 DSTY LongFast 2026-03-13 17:20:44 UTC View
IsenMesh.Base2.PA (ISB2) +12.449s
After 		-99.0 dBm -12.75 dB 4 34 LongFast 2026-03-13 17:20:53 UTC View
IsenMesh.Base3.PA (ISB3) +12.461s
After 		-101.0 dBm -9.75 dB 4 34 LongFast 2026-03-13 17:20:53 UTC View
6

Total Receptions

6

Unique Gateways