Packet #2108861 Success

NODEINFO_APP packet from ISAC-R02_38ae (R02) to !ffffffff

6
Total Receptions
6
Unique Gateways
2
Hop Count
77
Payload Bytes
Packet Information
Database ID: 2108861
Mesh Packet ID: 0xbe0085e0
Used for correlation across gateways
Timestamp: 2025-11-15 03:45:00 UTC
From Node: ISAC-R02_38ae (R02)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: NODEINFO_APP
Port: 4
Gateway: KE2GKD (K7JC)
Channel: LongFast
RSSI: -113 dBm
SNR: -5.0 dBm
Hop Info: 2/3 hops
Start: 3, Limit: 1
Relay Node: f4 ⚡1
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: 77 bytes
Decoded: Yes
Decoded Data:
Long Name:ISAC-R02_38ae
Short Name:R02
Node ID:!4d1938ae
MAC Address:115NGTiu
Hardware:RAK4631
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:77 bytes
Gateway:!9f6e8002
Channel:LongFast
Payload Type:NODEINFO_APP
Hop Count:2 / 3
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 !9f6e8002
Node ID format
channel_id LongFast
Default public channel
packet MeshPacket (77 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 1293498542
Source node ID 		uint32
to 4294967295 (Broadcast)
Visible to all nodes 		uint32
decoded.portnum 4
NODEINFO_APP 		enum
decoded.payload_length 77 bytes size
hop_limit 1
Remaining hops allowed 		uint32
hop_start 3
Initial hop limit 		uint32
hops_taken 2
Calculated: hop_start - hop_limit 		derived
rx_rssi -113.0 dBm
Signal strength at gateway 		int32
rx_snr -5.00 dB
Signal quality at gateway 		float
rx_time 1763178384
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 244
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1763178300.761667
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 (2 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !9f6e8002
Signal Metrics: RSSI: -113.0 dBm
SNR: -5.00 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:NODEINFO_APP
Size:77 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "id": "!4d1938ae", "long_name": "ISAC-R02_38ae", "short_name": "R02", "macaddr": "115NGTiu", "hw_model": "RAK4631" }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!9f6e8002", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1293498542, "to": 4294967295, "id": 3187705312, "rx_time": 1763178384, "rx_snr": -5.0, "rx_rssi": -113, "hop_limit": 1, "hop_start": 3, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 244, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09213464313933386165120d495341432d5230325f333861651a035230322206d75e4d1938ae280942208de178ea634389951e7efe714f239292dd22af1ffc5b6dc8749c8bb635549e794801", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!4d1938ae", "long_name": "ISAC-R02_38ae", "short_name": "R02", "macaddr": "115NGTiu", "hw_model": "RAK4631", "public_key": "jeF46mNDiZUefv5xTyOSkt0irx/8W23IdJyLtjVUnnk=", "is_unmessagable": true, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }
Raw Packet Data (77 bytes)
0a09213464313933386165120d495341432d5230325f333861651a035230322206d75e4d1938ae280942208de178ea634389951e7efe714f239292dd22af1ffc5b6dc8749c8bb635549e794801
Hex Analysis:
Size:77 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
KE2GKD (K7JC) Primary 0.000s
Reference 		-113.0 dBm -5.00 dB 2 f4 ⚡1 LongFast 2025-11-15 03:45:00 UTC Current
Claudiopolis-440c (440c) -3.618s
Before 		-100.0 dBm -6.75 dB 0 ae R02 LongFast 2025-11-15 03:44:57 UTC View
K2XAP V4 MS (XAP4) -0.540s
Before 		-82.0 dBm -12.75 dB 2 f4 ⚡1 LongFast 2025-11-15 03:45:00 UTC View
ClaremontWx.net (CmWx) +1.615s
After 		-83.0 dBm 3.50 dB 3 48 VYL0 , CWM1 LongFast 2025-11-15 03:45:02 UTC View
K2XAP / nyme.sh (XAP) +2.024s
After 		-126.0 dBm -14.25 dB 3 48 VYL0 LongFast 2025-11-15 03:45:02 UTC View
DRP1 Chelsea (DRP1) +2.070s
After 		-115.0 dBm -14.25 dB 3 - LongFast 2025-11-15 03:45:02 UTC View
6

Total Receptions

6

Unique Gateways