Packet #2978740 Success

NODEINFO_APP packet from Meshtastic a480 (a480) to !ffffffff

1
Total Receptions
1
Unique Gateways
2
Hop Count
80
Payload Bytes
Packet Information
Database ID: 2978740
Mesh Packet ID: 0x3905a348
Used for correlation across gateways
Timestamp: 2026-03-17 07:46:15 UTC
From Node: Meshtastic a480 (a480)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: NODEINFO_APP
Port: 4
Gateway: HK-Viriato-CL-8 (HKVR)
Channel: LongFast
RSSI: -127 dBm
SNR: -17.75 dBm
Hop Info: 2/5 hops
Start: 5, Limit: 3
Relay Node: 40 HKG6
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 a480
Short Name:a480
Node ID:!6985a480
MAC Address:kHBphaSA
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:!299c0d71
Channel:LongFast
Payload Type:NODEINFO_APP
Hop Count:2 / 5
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

FieldValue
gateway_id !299c0d71
Node ID format
channel_id LongFast
Default public channel
packet MeshPacket (80 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Canonical MeshPacket view reconstructed from stored protobuf bytes.

FieldValueType
from 1770366080
Source node ID 		uint32
to 4294967295 (Broadcast)
Visible to all nodes 		uint32
decoded.portnum NODEINFO_APP
NODEINFO_APP 		enum
decoded.payload_length 80 bytes size
hop_limit 3
Remaining hops allowed 		uint32
hop_start 5
Initial hop limit 		uint32
hops_taken 2
Calculated: hop_start - hop_limit 		derived
rx_rssi -127.0 dBm
Signal strength at gateway 		int32
rx_snr -17.75 dB
Signal quality at gateway 		float
rx_time 1773733574
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 8
Channel index 		uint32
pki_encrypted False
Standard encryption 		bool
next_hop Not set uint32
relay_node 64
Relay node ID 		uint32
tx_after Not set uint32
timestamp Not set 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 (2 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !299c0d71
Signal Metrics: RSSI: -127.0 dBm
SNR: -17.75 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": "!6985a480", "long_name": "Meshtastic a480", "short_name": "a480", "macaddr": "kHBphaSA", "hw_model": "HELTEC_V4" }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "packet": { "from": 1770366080, "to": 4294967295, "channel": 8, "decoded": { "portnum": "NODEINFO_APP", "payload": "CgkhNjk4NWE0ODASD01lc2h0YXN0aWMgYTQ4MBoEYTQ4MCIGkHBphaSAKG5CIIxJRIq4hw41r6KNugUHRjtaKBbE7g9P+KY5Kduo/R8WSAA=", "bitfield": 1 }, "id": 956670792, "rx_time": 1773733574, "rx_snr": -17.75, "hop_limit": 3, "rx_rssi": -127, "hop_start": 5, "relay_node": 64, "transport_mechanism": "TRANSPORT_LORA" }, "channel_id": "LongFast", "gateway_id": "!299c0d71" }, "mesh_packet": { "from": 1770366080, "to": 4294967295, "channel": 8, "decoded": { "portnum": "NODEINFO_APP", "payload": "CgkhNjk4NWE0ODASD01lc2h0YXN0aWMgYTQ4MBoEYTQ4MCIGkHBphaSAKG5CIIxJRIq4hw41r6KNugUHRjtaKBbE7g9P+KY5Kduo/R8WSAA=", "bitfield": 1, "parsed_payload": { "id": "!6985a480", "long_name": "Meshtastic a480", "short_name": "a480", "macaddr": "kHBphaSA", "hw_model": "HELTEC_V4", "public_key": "jElEiriHDjWvoo26BQdGO1ooFsTuD0/4pjkp26j9HxY=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } }, "id": 956670792, "rx_time": 1773733574, "rx_snr": -17.75, "hop_limit": 3, "rx_rssi": -127, "hop_start": 5, "relay_node": 64, "transport_mechanism": "TRANSPORT_LORA" } }
Raw Packet Data (80 bytes)
0a09213639383561343830120f4d65736874617374696320613438301a0461343830220690706985a480286e42208c49448ab8870e35afa28dba0507463b5a2816c4ee0f4ff8a63929dba8fd1f164800
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
HK-Viriato-CL-8 (HKVR) Primary 0.000s
Reference 		-127.0 dBm -17.75 dB 2 40 HKG6 LongFast 2026-03-17 07:46:15 UTC Current
No other receptions found within ±2 seconds
1

Total Receptions

1

Unique Gateways