Packet #2175445 Success

NODEINFO_APP packet from DG8OAJ-Fix (mhkF) to !ffffffff

14
Total Receptions
13
Unique Gateways
0
Hop Count
73
Payload Bytes
Packet Information
Database ID: 2175445
Mesh Packet ID: 0x0424a014
Used for correlation across gateways
Timestamp: 2025-06-28 21:35:34 UTC
From Node: DG8OAJ-Fix (mhkF)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: NODEINFO_APP
Port: 4
Gateway: srs-h3 📡🌐 (srs0)
Channel: LongFast
RSSI: -96 dBm
SNR: 4.25 dBm
Hop Info: 0/7 hops
Start: 7, Limit: 7
Payload Data
Protocol: NODEINFO_APP
Size: 73 bytes
Decoded: Yes
Decoded Data:
Long Name:DG8OAJ-Fix
Short Name:mhkF
Node ID:!43b6e3fc
MAC Address:SMpDtuP8
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:73 bytes
Gateway:!433d603c
Channel:LongFast
Payload Type:NODEINFO_APP
Hop Count:Unknown / 7
Privacy Summary
Exposure Level:
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Gateway node ID tracked
+ 1 more...
Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
+ 2 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !433d603c
Node ID format
channel_id LongFast
Default public channel
packet MeshPacket (73 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 1136059388
Source node ID 		uint32
to 4294967295 (Broadcast)
Visible to all nodes 		uint32
decoded.portnum 4
NODEINFO_APP 		enum
decoded.payload_length 73 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 -96.0 dBm
Signal strength at gateway 		int32
rx_snr 4.25 dB
Signal quality at gateway 		float
rx_time 1751146532
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 1751146534.7387137
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
  • ✓ Zero-hop: direct from source to MQTT gateway
Exposure Risks:
  • ⚠ Visible to all nodes on channel
  • ⚠ Default channel - no encryption
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !433d603c
Zero Hop Policy: Enabled
Direct gateway connection
Signal Metrics: RSSI: -96.0 dBm
SNR: 4.25 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:NODEINFO_APP
Size:73 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "id": "!43b6e3fc", "long_name": "DG8OAJ-Fix", "short_name": "mhkF", "macaddr": "SMpDtuP8", "hw_model": "HELTEC_V3" }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!433d603c", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1136059388, "to": 4294967295, "id": 69509140, "rx_time": 1751146532, "rx_snr": 4.25, "rx_rssi": -96, "hop_limit": 7, "hop_start": 7, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 0, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09213433623665336663120a4447384f414a2d4669781a046d686b46220648ca43b6e3fc282b4220c2dd55540b66b2171c503876445bb947fa2736c1e1ad5988352d6a091f62e81b", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!43b6e3fc", "long_name": "DG8OAJ-Fix", "short_name": "mhkF", "macaddr": "SMpDtuP8", "hw_model": "HELTEC_V3", "public_key": "wt1VVAtmshccUDh2RFu5R/onNsHhrVmINS1qCR9i6Bs=", "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }
Raw Packet Data (73 bytes)
0a09213433623665336663120a4447384f414a2d4669781a046d686b46220648ca43b6e3fc282b4220c2dd55540b66b2171c503876445bb947fa2736c1e1ad5988352d6a091f62e81b
Hex Analysis:
Size:73 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 Channel Timestamp Actions
srs-h3 📡🌐 (srs0) Primary 0.000s
Reference 		-96.0 dBm 4.25 dB 0 LongFast 2025-06-28 21:35:34 Current
Wake Up, Neo...📡 (NEO) +6.989s
After 		-95.0 dBm -0.75 dB 2 LongFast 2025-06-28 21:35:41 View
Mec Rocket Meco (MRM) +6.998s
After 		-120.0 dBm -13.25 dB 2 LongFast 2025-06-28 21:35:41 View
Venturada base🗼🌐 (Vb) +7.960s
After 		-99.0 dBm 6.25 dB 2 LongFast 2025-06-28 21:35:42 View
GRN1-Base📡🌐 (GRN1) +10.639s
After 		-125.0 dBm -15.50 dB 4 LongFast 2025-06-28 21:35:45 View
[TLGO] Base 📡🌐 (TLG0) +14.073s
After 		-107.0 dBm -2.00 dB 4 LongFast 2025-06-28 21:35:48 View
Hugo 📱🌡️ (HUGO) +18.299s
After 		-94.0 dBm -19.50 dB 3 LongFast 2025-06-28 21:35:53 View
Perseo 🗼 (nvm1) +18.357s
After 		-91.0 dBm 2.75 dB 3 LongFast 2025-06-28 21:35:53 View
Meshtastic c498📡🌐 (C498) +25.457s
After 		-125.0 dBm -17.75 dB 5 LongFast 2025-06-28 21:36:00 View
Fenix (Feni) +26.023s
After 		-123.0 dBm -15.75 dB 5 LongFast 2025-06-28 21:36:00 View
Vito 📟📡 (VTO) +27.916s
After 		-112.0 dBm -6.50 dB 6 LongFast 2025-06-28 21:36:02 View
SkG@Home 🗼🌐 (SkGH) +33.215s
After 		-118.0 dBm -15.25 dB 6 LongFast 2025-06-28 21:36:07 View
Torrejon de ardoz Node (5b30) +397.551s
After 		-126.0 dBm -16.00 dB 7 LongFast 2025-06-28 21:42:12 View
Torrejon de ardoz Node (5b30) +417.581s
After 		-126.0 dBm -16.00 dB 7 LongFast 2025-06-28 21:42:32 View
14

Total Receptions

13

Unique Gateways