Packet #678294 Success

NODEINFO_APP packet from Sandwich 🥪 (SNDW) to Meshtastic 7170 (7170)

2
Total Receptions
2
Unique Gateways
7
Hop Count
79
Payload Bytes
Packet Information
Database ID: 678294
Mesh Packet ID: 0xfc4bb335
Used for correlation across gateways
Timestamp: 2026-03-30 08:55:08 UTC
From Node: Sandwich 🥪 (SNDW)
To Node: Meshtastic 7170 (7170)
Success: Processed
Protocol: NODEINFO_APP
Port: 4
Gateway: Meshtastic 8fac (8fac)
Channel: chat.cap.ru
RSSI: -37 dBm
SNR: 5.75 dBm
Hop Info: 7/7 hops
Start: 7, Limit: 0
Relay Node: 88 cb88
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: 79 bytes
Decoded: Yes
Decoded Data:
Long Name:Sandwich 🥪
Short Name:SNDW
Node ID:!9ee78ab8
MAC Address:nBOe54q4
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:79 bytes
Gateway:!9e768fac
Channel:chat.cap.ru
Payload Type:NODEINFO_APP
Hop Count:7 / 7
Privacy Summary
Exposure Level:
Direct Message
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Targeted to specific node
+ 2 more...
Exposure Risks:
⚠ Packet visible to MQTT subscribers
⚠ Multi-hop path visible (7 hops)
+ 1 more...
MQTT ServiceEnvelope Fields

FieldValue
gateway_id !9e768fac
Node ID format
channel_id chat.cap.ru
packet MeshPacket (79 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Canonical MeshPacket view reconstructed from stored protobuf bytes.

FieldValueType
from 2665974456
Source node ID 		uint32
to 4007817584
Target node ID 		uint32
decoded.portnum NODEINFO_APP
NODEINFO_APP 		enum
decoded.payload_length 79 bytes size
hop_limit Not set uint32
hop_start 7
Initial hop limit 		uint32
hops_taken 7
Calculated: hop_start - hop_limit 		derived
rx_rssi -37.0 dBm
Signal strength at gateway 		int32
rx_snr 5.75 dB
Signal quality at gateway 		float
rx_time 1774860901
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 105
Channel index 		uint32
pki_encrypted False
Standard encryption 		bool
next_hop Not set uint32
relay_node 136
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: Direct Message
Privacy Features:
  • ✓ Direct LoRa transmission (not via MQTT)
  • ✓ Targeted to specific node
  • ✓ Custom channel: chat.cap.ru
  • ✓ Gateway node ID tracked
Exposure Risks:
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ Multi-hop path visible (7 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !9e768fac
Signal Metrics: RSSI: -37.0 dBm
SNR: 5.75 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:NODEINFO_APP
Size:79 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "id": "!9ee78ab8", "long_name": "Sandwich 🥪 ", "short_name": "SNDW", "macaddr": "nBOe54q4", "hw_model": "HELTEC_V3" }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "packet": { "from": 2665974456, "to": 4007817584, "channel": 105, "decoded": { "portnum": "NODEINFO_APP", "payload": "CgkhOWVlNzhhYjgSDlNhbmR3aWNoIPCfpaogGgRTTkRXIgacE57nirgoK0IgVCedHDD6/Zx9AVBirNC1S7RlyZxlOegwfnY74YttMlJIAA==", "want_response": true, "bitfield": 3 }, "id": 4232819509, "rx_time": 1774860901, "rx_snr": 5.75, "rx_rssi": -37, "hop_start": 7, "relay_node": 136, "transport_mechanism": "TRANSPORT_LORA" }, "channel_id": "chat.cap.ru", "gateway_id": "!9e768fac" }, "mesh_packet": { "from": 2665974456, "to": 4007817584, "channel": 105, "decoded": { "portnum": "NODEINFO_APP", "payload": "CgkhOWVlNzhhYjgSDlNhbmR3aWNoIPCfpaogGgRTTkRXIgacE57nirgoK0IgVCedHDD6/Zx9AVBirNC1S7RlyZxlOegwfnY74YttMlJIAA==", "want_response": true, "bitfield": 3, "parsed_payload": { "id": "!9ee78ab8", "long_name": "Sandwich 🥪 ", "short_name": "SNDW", "macaddr": "nBOe54q4", "hw_model": "HELTEC_V3", "public_key": "VCedHDD6/Zx9AVBirNC1S7RlyZxlOegwfnY74YttMlI=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } }, "id": 4232819509, "rx_time": 1774860901, "rx_snr": 5.75, "rx_rssi": -37, "hop_start": 7, "relay_node": 136, "transport_mechanism": "TRANSPORT_LORA" } }
Raw Packet Data (79 bytes)
0a09213965653738616238120e53616e647769636820f09fa5aa201a04534e445722069c139ee78ab8282b422054279d1c30fafd9c7d015062acd0b54bb465c99c6539e8307e763be18b6d32524800
Hex Analysis:
Size:79 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
Meshtastic 8fac (8fac) Primary 0.000s
Reference 		-37.0 dBm 5.75 dB 7 88 cb88 chat.cap.ru 2026-03-30 08:55:08 UTC Current
7 hops Gateways that received this packet after 7 hops
Verdandi (VERD) -10.614s
Before 		-105.0 dBm -11.50 dB 7 b8 SNDW chat.cap.ru 2026-03-30 08:54:57 UTC View
2

Total Receptions

2

Unique Gateways