Packet #2782463 Success

NODEINFO_APP packet from Karl W2KBF (Karl) to Ceti Alpha V (7bdb)

2
Total Receptions
2
Unique Gateways
5
Hop Count
77
Payload Bytes
Packet Information
Database ID: 2782463
Mesh Packet ID: 0x1dd7a975
Used for correlation across gateways
Timestamp: 2025-11-26 20:22:45 UTC
From Node: Karl W2KBF (Karl)
To Node: Ceti Alpha V (7bdb)
Success: Processed
Protocol: NODEINFO_APP
Port: 4
Gateway: Freeek1 (frk1)
Channel: LongFast
RSSI: -120 dBm
SNR: -14.75 dBm
Hop Info: 5/5 hops
Start: 5, Limit: 0
Relay Node: 06 RSR1 , AMR1
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: 77 bytes
Decoded: Yes
Decoded Data:
Long Name:Karl W2KBF
Short Name:Karl
Node ID:!849ba0bc
MAC Address:sIGEm6C8
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:77 bytes
Gateway:!bb7e82df
Channel:LongFast
Payload Type:NODEINFO_APP
Hop Count:5 / 5
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 !bb7e82df
Node ID format
channel_id LongFast
Default public channel
packet MeshPacket (77 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 2224791740
Source node ID 		uint32
to 353663963
Target node ID 		uint32
decoded.portnum 4
NODEINFO_APP 		enum
decoded.payload_length 77 bytes size
hop_limit Not set uint32
hop_start 5
Initial hop limit 		uint32
hops_taken 5
Calculated: hop_start - hop_limit 		derived
rx_rssi -120.0 dBm
Signal strength at gateway 		int32
rx_snr -14.75 dB
Signal quality at gateway 		float
rx_time 1764184554
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 6
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1764188565.8563104
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 (5 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !bb7e82df
Signal Metrics: RSSI: -120.0 dBm
SNR: -14.75 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:NODEINFO_APP
Size:77 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "id": "!849ba0bc", "long_name": "Karl W2KBF", "short_name": "Karl", "macaddr": "sIGEm6C8", "hw_model": "HELTEC_V3" }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!bb7e82df", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2224791740, "to": 353663963, "id": 500672885, "rx_time": 1764184554, "rx_snr": -14.75, "rx_rssi": -120, "hop_limit": 0, "hop_start": 5, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 6, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09213834396261306263120a4b61726c2057324b42461a044b61726c2206b081849ba0bc282b380142207b04e637a9292d78498d0cdaeada17fb153aca63b76d19eb9133df22fbdc76614800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!849ba0bc", "long_name": "Karl W2KBF", "short_name": "Karl", "macaddr": "sIGEm6C8", "hw_model": "HELTEC_V3", "role": "CLIENT_MUTE", "public_key": "ewTmN6kpLXhJjQza6toX+xU6ymO3bRnrkTPfIvvcdmE=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }
Raw Packet Data (77 bytes)
0a09213834396261306263120a4b61726c2057324b42461a044b61726c2206b081849ba0bc282b380142207b04e637a9292d78498d0cdaeada17fb153aca63b76d19eb9133df22fbdc76614800
Hex Analysis:
Size:77 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
Freeek1 (frk1) Primary 0.000s
Reference 		-120.0 dBm -14.75 dB 5 06 RSR1 , AMR1 LongFast 2025-11-26 20:22:45 UTC Current
dkTowerBot (dkTB) -3813.802s
Before 		-108.0 dBm -18.50 dB 5 d8 JLX7 LongFast 2025-11-26 19:19:12 UTC View
2

Total Receptions

2

Unique Gateways