Packet #2857290 Success

NODEINFO_APP packet from Sierra norte Madrid ⛰️ (SNM) to !bf79bf37

16
Total Receptions
16
Unique Gateways
0
Hop Count
90
Payload Bytes
Packet Information
Database ID: 2857290
Mesh Packet ID: 0x2dd5fe6f
Used for correlation across gateways
Timestamp: 2025-07-05 04:31:32 UTC
From Node: Sierra norte Madrid ⛰️ (SNM)
To Node: !bf79bf37 (bf37)
Success: Processed
Protocol: NODEINFO_APP
Port: 4
Gateway: [TLGO] Base 📡🌐 (TLG0)
Channel: LongFast
RSSI: -112 dBm
SNR: -4.25 dBm
Hop Info: 0/5 hops
Start: 5, Limit: 5
Payload Data
Protocol: NODEINFO_APP
Size: 90 bytes
Decoded: Yes
Decoded Data:
Long Name:Sierra norte Madrid ⛰️
Short Name:SNM
Node ID:!43562884
MAC Address:SMpDViiE
Hardware:HELTEC_WSL_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:90 bytes
Gateway:!da638a24
Channel:LongFast
Payload Type:NODEINFO_APP
Hop Count:Unknown / 5
Privacy Summary
Exposure Level:
Direct Message
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Targeted to specific node
+ 2 more...
Exposure Risks:
⚠ Default channel - no encryption
⚠ Packet visible to MQTT subscribers
+ 1 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !da638a24
Node ID format
channel_id LongFast
Default public channel
packet MeshPacket (90 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 1129719940
Source node ID 		uint32
to 3212427063
Target node ID 		uint32
decoded.portnum 4
NODEINFO_APP 		enum
decoded.payload_length 90 bytes size
hop_limit 5
Remaining hops allowed 		uint32
hop_start 5
Initial hop limit 		uint32
hops_taken 0
Calculated: hop_start - hop_limit 		derived
rx_rssi -112.0 dBm
Signal strength at gateway 		int32
rx_snr -4.25 dB
Signal quality at gateway 		float
rx_time 1751689891
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 1751689892.5092146
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
  • ✓ Zero-hop: direct from source to MQTT gateway
Exposure Risks:
  • ⚠ Default channel - no encryption
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !da638a24
Zero Hop Policy: Enabled
Direct gateway connection
Signal Metrics: RSSI: -112.0 dBm
SNR: -4.25 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:NODEINFO_APP
Size:90 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "id": "!43562884", "long_name": "Sierra norte Madrid ⛰️", "short_name": "SNM", "macaddr": "SMpDViiE", "hw_model": "HELTEC_WSL_V3" }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!da638a24", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1129719940, "to": 3212427063, "id": 768999023, "rx_time": 1751689891, "rx_snr": -4.25, "rx_rssi": -112, "hop_limit": 5, "hop_start": 5, "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": "0a09213433353632383834121a536965727261206e6f727465204d616472696420e29bb0efb88f1a03534e4d220648ca43562884282c380242207e52862e72b32f44af42b528084eefaa0bee58c0c7cbf44107a3ced8bae4c945", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!43562884", "long_name": "Sierra norte Madrid ⛰️", "short_name": "SNM", "macaddr": "SMpDViiE", "hw_model": "HELTEC_WSL_V3", "role": "ROUTER", "public_key": "flKGLnKzL0SvQrUoCE7vqgvuWMDHy/RBB6PO2LrkyUU=", "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }
Raw Packet Data (90 bytes)
0a09213433353632383834121a536965727261206e6f727465204d616472696420e29bb0efb88f1a03534e4d220648ca43562884282c380242207e52862e72b32f44af42b528084eefaa0bee58c0c7cbf44107a3ced8bae4c945
Hex Analysis:
Size:90 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
[TLGO] Base 📡🌐 (TLG0) Primary 0.000s
Reference 		-112.0 dBm -4.25 dB 0 LongFast 2025-07-05 04:31:32 Current
Meshtastic c498📡🌐 (C498) -0.021s
Before 		-125.0 dBm -18.00 dB 0 LongFast 2025-07-05 04:31:32 View
Venturada base🗼🌐 (Vb) +0.019s
After 		-113.0 dBm -2.50 dB 0 LongFast 2025-07-05 04:31:32 View
GRN1-Base📡🌐 (GRN1) +0.035s
After 		-110.0 dBm -2.25 dB 0 LongFast 2025-07-05 04:31:32 View
Venturada2🗼🌐☀️ (Vb2) +2.463s
After 		-109.0 dBm -11.75 dB 1 LongFast 2025-07-05 04:31:34 View
Mec Rocket Meco (MRM) +2.620s
After 		-125.0 dBm -17.50 dB 1 LongFast 2025-07-05 04:31:35 View
EA4HDZ MdlS🗼 (AERO) +2.748s
After 		-120.0 dBm -10.75 dB 1 LongFast 2025-07-05 04:31:35 View
srs-h3 📡🌐 (srs0) +3.311s
After 		-122.0 dBm -13.50 dB 1 LongFast 2025-07-05 04:31:35 View
Perseo 🗼 (nvm1) +4.204s
After 		-93.0 dBm 2.00 dB 2 LongFast 2025-07-05 04:31:36 View
SkG@Home 🗼🌐 (SkGH) +4.513s
After 		-119.0 dBm -13.00 dB 2 LongFast 2025-07-05 04:31:37 View
Wake Up, Neo...📡 (NEO) +7.295s
After 		-87.0 dBm Unknown 3 LongFast 2025-07-05 04:31:39 View
MeshtTetuan1🗼🌐 (MT01) +7.604s
After 		-128.0 dBm -17.00 dB 3 LongFast 2025-07-05 04:31:40 View
TweeteR (TwT) +7.663s
After 		-123.0 dBm -15.50 dB 3 LongFast 2025-07-05 04:31:40 View
Villalbilla02 (VBV2) +7.722s
After 		-115.0 dBm -6.00 dB 3 LongFast 2025-07-05 04:31:40 View
Hugo 📱🌡️ (HUGO) +15.827s
After 		-111.0 dBm -9.00 dB 4 LongFast 2025-07-05 04:31:48 View
Ventilla 📡🌐 (VENT) +15.989s
After 		-104.0 dBm 2.50 dB 4 LongFast 2025-07-05 04:31:48 View
16

Total Receptions

16

Unique Gateways