Packet #28313247 Success

NODEINFO_APP packet from Meshtastic b2b4📡🌐 (b2b4) to !ffffffff

13
Total Receptions
13
Unique Gateways
4
Hop Count
88
Payload Bytes
Packet Information
Database ID: 28313247
Mesh Packet ID: 0x47549ee5
Used for correlation across gateways
Timestamp: 2025-12-17 17:50:42 UTC
From Node: Meshtastic b2b4📡🌐 (b2b4)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: NODEINFO_APP
Port: 4
Gateway: GRN1-Base🗼🌐 🔋 (GRN1)
Channel: MediumFast
RSSI: -97 dBm
SNR: 0.75 dBm
Hop Info: 4/4 hops
Start: 4, Limit: 0
Relay Node: b0 Vbm , Vb2
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: 88 bytes
Decoded: Yes
Decoded Data:
Long Name:Meshtastic b2b4📡🌐
Short Name:b2b4
Node ID:!433db2b4
MAC Address:SMpDPbK0
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:88 bytes
Gateway:!43b706e8
Channel:MediumFast
Payload Type:NODEINFO_APP
Hop Count:4 / 4
Privacy Summary
Exposure Level:
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: MediumFast
+ 1 more...
Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers
+ 2 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !43b706e8
Node ID format
channel_id MediumFast
packet MeshPacket (88 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 1128116916
Source node ID 		uint32
to 4294967295 (Broadcast)
Visible to all nodes 		uint32
decoded.portnum 4
NODEINFO_APP 		enum
decoded.payload_length 88 bytes size
hop_limit Not set uint32
hop_start 4
Initial hop limit 		uint32
hops_taken 4
Calculated: hop_start - hop_limit 		derived
rx_rssi -97.0 dBm
Signal strength at gateway 		int32
rx_snr 0.75 dB
Signal quality at gateway 		float
rx_time 1765993842
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 176
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1765993842.9582279
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)
  • ✓ Custom channel: MediumFast
  • ✓ Gateway node ID tracked
Exposure Risks:
  • ⚠ Visible to all nodes on channel
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ Multi-hop path visible (4 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !43b706e8
Signal Metrics: RSSI: -97.0 dBm
SNR: 0.75 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:NODEINFO_APP
Size:88 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "id": "!433db2b4", "long_name": "Meshtastic b2b4📡🌐", "short_name": "b2b4", "macaddr": "SMpDPbK0", "hw_model": "HELTEC_WSL_V3" }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!43b706e8", "channel_id": "MediumFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1128116916, "to": 4294967295, "id": 1196728037, "rx_time": 1765993842, "rx_snr": 0.75, "rx_rssi": -97, "hop_limit": 0, "hop_start": 4, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 176, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a0921343333646232623412174d6573687461737469632062326234f09f93a1f09f8c901a0462326234220648ca433db2b4282c4220f223c4f012a7cf7cc3104a998b1aa3296f255f58f28272bb26d8fa717627ab1c4801", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!433db2b4", "long_name": "Meshtastic b2b4📡🌐", "short_name": "b2b4", "macaddr": "SMpDPbK0", "hw_model": "HELTEC_WSL_V3", "public_key": "8iPE8BKnz3zDEEqZixqjKW8lX1jygnK7Jtj6cXYnqxw=", "is_unmessagable": true, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }
Raw Packet Data (88 bytes)
0a0921343333646232623412174d6573687461737469632062326234f09f93a1f09f8c901a0462326234220648ca433db2b4282c4220f223c4f012a7cf7cc3104a998b1aa3296f255f58f28272bb26d8fa717627ab1c4801
Hex Analysis:
Size:88 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
GRN1-Base🗼🌐 🔋 (GRN1) Primary 0.000s
Reference 		-97.0 dBm 0.75 dB 4 b0 Vbm , Vb2 MediumFast 2025-12-17 17:50:42 UTC Current
Meshtastic b2b4📡🌐 (b2b4) -8.358s
Before 		Unknown Unknown 0 b4 b2b4 MediumFast 2025-12-17 17:50:34 UTC View
Karabanchel_Baldur (KarB) -4.081s
Before 		-92.0 dBm 3.25 dB 1 2d SkyB MediumFast 2025-12-17 17:50:38 UTC View
🤖 Nicolas Cage 🌐 (Cage) -3.803s
Before 		-66.0 dBm 10.25 dB 1 2d SkyB MediumFast 2025-12-17 17:50:39 UTC View
tizon (Sylv) -3.751s
Before 		-123.0 dBm -15.00 dB 1 2d SkyB MediumFast 2025-12-17 17:50:39 UTC View
Fenix (FENX) -1.361s
Before 		-116.0 dBm -10.75 dB 2 88 KarB , FENX MediumFast 2025-12-17 17:50:41 UTC View
Venturada2 🗼🌞 (Vb2) -0.807s
Before 		-87.0 dBm 5.50 dB 3 61 TO1 MediumFast 2025-12-17 17:50:42 UTC View
Ocumare Norte🗼🌐 (RRN) -0.312s
Before 		-105.0 dBm -9.75 dB 4 b0 Vbm , Vb2 MediumFast 2025-12-17 17:50:42 UTC View
Eagle’s Nest (EAGL) -0.179s
Before 		-107.0 dBm 3.00 dB 4 a4 Raq1 MediumFast 2025-12-17 17:50:42 UTC View
XiaoWatt c4c8 🌐🔌 (c4c8) +0.208s
After 		-79.0 dBm 8.50 dB 4 b0 Vbm , Vb2 MediumFast 2025-12-17 17:50:43 UTC View
ETH Maverick (ET01) +0.955s
After 		-108.0 dBm -10.75 dB 3 61 TO1 MediumFast 2025-12-17 17:50:43 UTC View
ETH Goose (ET03) +2.018s
After 		-43.0 dBm 10.50 dB 4 41 ET01 MediumFast 2025-12-17 17:50:44 UTC View
Varela Bot 🏡🤖 (🤖) +2.931s
After 		-88.0 dBm 6.75 dB 4 1c 🏡 MediumFast 2025-12-17 17:50:45 UTC View
13

Total Receptions

13

Unique Gateways