Packet #2811215 Success

NODEINFO_APP packet from K2XAP R1 ext (3ba0) to K2XAP deck (XAPk)

3
Total Receptions
3
Unique Gateways
0
Hop Count
77
Payload Bytes
Packet Information
Database ID: 2811215
Mesh Packet ID: 0x4f4446ec
Used for correlation across gateways
Timestamp: 2025-11-27 15:44:03 UTC
From Node: K2XAP R1 ext (3ba0)
To Node: K2XAP deck (XAPk)
Success: Processed
Protocol: NODEINFO_APP
Port: 4
Gateway: K2XAP V4 MS (XAP4)
Channel: MediumSlow
RSSI: -63 dBm
SNR: 4.75 dBm
Hop Info: 0/3 hops
Start: 3, Limit: 3
Relay Node: a0 3ba0 , XAP4
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:K2XAP R1 ext
Short Name:3ba0
Node ID:!b1343ba0
MAC Address:zS+xNDug
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:!b29fa3a0
Channel:MediumSlow
Payload Type:NODEINFO_APP
Hop Count:Unknown / 3
Privacy Summary
Exposure Level:
Direct Message
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Targeted to specific node
+ 3 more...
Exposure Risks:
⚠ Packet visible to MQTT subscribers
⚠ RF signal metrics exposed (location inference possible)
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !b29fa3a0
Node ID format
channel_id MediumSlow
packet MeshPacket (77 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 2972990368
Source node ID 		uint32
to 1127203384
Target node ID 		uint32
decoded.portnum 4
NODEINFO_APP 		enum
decoded.payload_length 77 bytes size
hop_limit 3
Remaining hops allowed 		uint32
hop_start 3
Initial hop limit 		uint32
hops_taken 0
Calculated: hop_start - hop_limit 		derived
rx_rssi -63.0 dBm
Signal strength at gateway 		int32
rx_snr 4.75 dB
Signal quality at gateway 		float
rx_time 1764258352
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 160
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1764258243.2987413
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
  • ✓ Custom channel: MediumSlow
  • ✓ Gateway node ID tracked
  • ✓ Zero-hop: direct from source to MQTT gateway
Exposure Risks:
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !b29fa3a0
Zero Hop Policy: Enabled
Direct gateway connection
Signal Metrics: RSSI: -63.0 dBm
SNR: 4.75 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": "!b1343ba0", "long_name": "K2XAP R1 ext", "short_name": "3ba0", "macaddr": "zS+xNDug", "hw_model": "RAK4631" }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!b29fa3a0", "channel_id": "MediumSlow", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2972990368, "to": 1127203384, "id": 1329874668, "rx_time": 1764258352, "rx_snr": 4.75, "rx_rssi": -63, "hop_limit": 3, "hop_start": 3, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 160, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09216231333433626130120c4b32584150205231206578741a04336261302206cd2fb1343ba028094220c0f9603fcbae187df0467b751cbe0095087719499e87ee98f77f1d754680c32c4800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!b1343ba0", "long_name": "K2XAP R1 ext", "short_name": "3ba0", "macaddr": "zS+xNDug", "hw_model": "RAK4631", "public_key": "wPlgP8uuGH3wRnt1HL4AlQh3GUmeh+6Y938ddUaAwyw=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }
Raw Packet Data (77 bytes)
0a09216231333433626130120c4b32584150205231206578741a04336261302206cd2fb1343ba028094220c0f9603fcbae187df0467b751cbe0095087719499e87ee98f77f1d754680c32c4800
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
K2XAP V4 MS (XAP4) Primary 0.000s
Reference 		-63.0 dBm 4.75 dB 0 a0 3ba0 , XAP4 MediumSlow 2025-11-27 15:44:03 UTC Current
Poncho@pft! | MedSlow (pft!) +1.641s
After 		-99.0 dBm 2.25 dB 1 a0 XAP4 MediumSlow 2025-11-27 15:44:04 UTC View
JankStation (JKST) +5.869s
After 		-120.0 dBm -9.75 dB 2 1c pb! , 631c MediumSlow 2025-11-27 15:44:09 UTC View
3

Total Receptions

3

Unique Gateways