Packet #3437165 Success

NODEINFO_APP packet from Meshtastic 631c (GRBH) to !ffffffff

19
Total Receptions
19
Unique Gateways
4
Hop Count
82
Payload Bytes
Packet Information
Database ID: 3437165
Mesh Packet ID: 0xdafa47e5
Used for correlation across gateways
Timestamp: 2025-12-11 16:36:03 UTC
From Node: Meshtastic 631c (GRBH)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: NODEINFO_APP
Port: 4
Gateway: K2XAP Gateway (XAPg)
Channel: LongFast
RSSI: -40 dBm
SNR: 6.0 dBm
Hop Info: 4/7 hops
Start: 7, Limit: 3
Relay Node: 57 CmWx
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: 82 bytes
Decoded: Yes
Decoded Data:
Long Name:Meshtastic 631c
Short Name:GRBH
Node ID:!db51631c
MAC Address:EFHbUWMc
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:82 bytes
Gateway:!cb9be279
Channel:LongFast
Payload Type:NODEINFO_APP
Hop Count:4 / 7
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

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !cb9be279
Node ID format
channel_id LongFast
Default public channel
packet MeshPacket (82 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 3679544092
Source node ID 		uint32
to 4294967295 (Broadcast)
Visible to all nodes 		uint32
decoded.portnum 4
NODEINFO_APP 		enum
decoded.payload_length 82 bytes size
hop_limit 3
Remaining hops allowed 		uint32
hop_start 7
Initial hop limit 		uint32
hops_taken 4
Calculated: hop_start - hop_limit 		derived
rx_rssi -40.0 dBm
Signal strength at gateway 		int32
rx_snr 6.00 dB
Signal quality at gateway 		float
rx_time 1765471101
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 87
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1765470963.8542068
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
Exposure Risks:
  • ⚠ Visible to all nodes on channel
  • ⚠ Default channel - no encryption
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ Multi-hop path visible (4 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !cb9be279
Signal Metrics: RSSI: -40.0 dBm
SNR: 6.00 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:NODEINFO_APP
Size:82 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "id": "!db51631c", "long_name": "Meshtastic 631c", "short_name": "GRBH", "macaddr": "EFHbUWMc", "hw_model": "HELTEC_V3" }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!cb9be279", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3679544092, "to": 4294967295, "id": 3673835493, "rx_time": 1765471101, "rx_snr": 6.0, "rx_rssi": -40, "hop_limit": 3, "hop_start": 7, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 87, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09216462353136333163120f4d65736874617374696320363331631a044752424822061051db51631c282b380c42201adb6fd67e8a658ffa42f4a181bc2a19cb1e243b45e8e40c6d76736860c5ac414800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!db51631c", "long_name": "Meshtastic 631c", "short_name": "GRBH", "macaddr": "EFHbUWMc", "hw_model": "HELTEC_V3", "role": "CLIENT_BASE", "public_key": "Gttv1n6KZY/6QvShgbwqGcseJDtF6OQMbXZzaGDFrEE=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }
Raw Packet Data (82 bytes)
0a09216462353136333163120f4d65736874617374696320363331631a044752424822061051db51631c282b380c42201adb6fd67e8a658ffa42f4a181bc2a19cb1e243b45e8e40c6d76736860c5ac414800
Hex Analysis:
Size:82 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
K2XAP Gateway (XAPg) Primary 0.000s
Reference 		-40.0 dBm 6.00 dB 4 57 CmWx LongFast 2025-12-11 16:36:03 UTC Current
Meshtastic 631c (GRBH) -43.783s
Before 		Unknown Unknown 0 1c GRBH LongFast 2025-12-11 16:35:20 UTC View
Steiner Studios Tower (SST) -11.659s
Before 		-122.0 dBm -16.50 dB 1 23 P4NY LongFast 2025-12-11 16:35:52 UTC View
25 Washington Ave (25WA) -10.029s
Before 		-71.0 dBm -2.75 dB 2 4c SST LongFast 2025-12-11 16:35:53 UTC View
Meshtastic f5c8 (f5c8) -7.416s
Before 		-127.0 dBm -18.75 dB 3 25 25WA LongFast 2025-12-11 16:35:56 UTC View
1 MW 1 West Side | https://nyme.sh (1MW1) -6.848s
Before 		-105.0 dBm -4.50 dB 3 25 25WA LongFast 2025-12-11 16:35:57 UTC View
Gemini (GMNI) -6.750s
Before 		-121.0 dBm -8.50 dB 3 25 25WA LongFast 2025-12-11 16:35:57 UTC View
ClaremontWx.net (CmWx) -4.838s
Before 		-83.0 dBm -3.25 dB 4 c9 Penn , JLX3 LongFast 2025-12-11 16:35:59 UTC View
Claudiopolis-440c (440c) -4.343s
Before 		-89.0 dBm -3.00 dB 4 c9 Penn , JLX3 LongFast 2025-12-11 16:35:59 UTC View
YMH 1 @ Your Mom’s House (YMH1) -3.390s
Before 		-121.0 dBm -14.50 dB 4 74 LongFast 2025-12-11 16:36:00 UTC View
Izutsumi - seano@masto.nyc (izu) -3.154s
Before 		-86.0 dBm 2.75 dB 4 c9 Penn LongFast 2025-12-11 16:36:00 UTC View
K2XAP / nyme.sh (XAP) +0.563s
After 		-40.0 dBm 5.75 dB 4 57 CmWx LongFast 2025-12-11 16:36:04 UTC View
dkTowerBot (dkTB) +4.299s
After 		-104.0 dBm -16.00 dB 5 b2 MrWb , CBZ1 LongFast 2025-12-11 16:36:08 UTC View
DRP0 Astoria (DRP0) +4.317s
After 		-74.0 dBm -4.00 dB 5 b2 😴 , CBZ1 LongFast 2025-12-11 16:36:08 UTC View
Whole Foods Market UES (WFMK) +5.151s
After 		-108.0 dBm -6.25 dB 5 b2 CBZ1 LongFast 2025-12-11 16:36:09 UTC View
MeshM0xie (M0x) +6.234s
After 		-97.0 dBm -4.50 dB 3 7b 4b7b LongFast 2025-12-11 16:36:10 UTC View
BDP3 - Wio L1 (BDP3) +41.445s
After 		-109.0 dBm -15.50 dB 5 d5 ETNA LongFast 2025-12-11 16:36:45 UTC View
nLink-NY-Jamaica1 (NLJ1) +51.730s
After 		-102.0 dBm -10.00 dB 5 d5 ETNA LongFast 2025-12-11 16:36:55 UTC View
Psalm 23 (3:16) +278.201s
After 		-113.0 dBm -4.75 dB 4 c9 Penn LongFast 2025-12-11 16:40:42 UTC View
19

Total Receptions

19

Unique Gateways