Packet #21399249 Success

NEIGHBORINFO_APP packet from SYSXX YGW8 (SXY8) to Meshtastic c198 (c198)

3
Total Receptions
3
Unique Gateways
0
Hop Count
140
Payload Bytes
Packet Information
Database ID: 21399249
Mesh Packet ID: 0x90c14edf
Used for correlation across gateways
Timestamp: 2026-08-31 19:56:55 UTC
From Node: SYSXX YGW8 (SXY8)
To Node: Meshtastic c198 (c198)
Success: Processed
Protocol: NEIGHBORINFO_APP
Port: 71
Gateway: SYSXX YGW8 (SXY8)
Channel: PKI
RSSI: Unknown
SNR: Unknown
Hop Info: 0/3 hops
Start: 3, Limit: 3
Payload Data
Protocol: NEIGHBORINFO_APP
Size: 140 bytes
Decoded: Yes
Decoded Data:
Neighbor Information Report
Reporting Node: SYSXX YGW8 (SXY8)
Last Sent By: SYSXX YGW8 (SXY8)
Broadcast Interval:14400 seconds
Neighbors Found:10
10

Active Neighbors

Neighbor Details
Neighbor Node SNR Last Heard Broadcast Interval Signal Quality
RN3ABX Georgy 2 (ABX2) -9.0 dB Unknown Unknown Poor
Lukdut HA (cd54) 11.5 dB Unknown Unknown Excellent
SYSXX BGW8 (SXB8) 11.2 dB Unknown Unknown Excellent
Gen. Glagoleva str. 868 (G868) 11.0 dB Unknown Unknown Excellent
RN3ABX Georgy 1 (ABX1) -1.0 dB Unknown Unknown Fair
Messer (MAKS) -1.0 dB Unknown Unknown Fair
SZAO c582 (c582) 5.0 dB Unknown Unknown Excellent
NERV_Mnevniki (NERV) 8.2 dB Unknown Unknown Excellent
Dero Base 8 (drb8) 12.0 dB Unknown Unknown Excellent
COVOX BASE 📡 (🧙) 0.8 dB Unknown Unknown Good
This neighbor information was reported by SYSXX YGW8 (SXY8) and shows which nodes it can directly communicate with and their signal quality.
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:140 bytes
Gateway:!efffff02
Channel:PKI
Payload Type:NEIGHBORINFO_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:
âš  Packet visible to MQTT subscribers
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !efffff02
Node ID format
channel_id PKI
packet MeshPacket (140 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 4026531586
Source node ID 		uint32
to 463716760
Target node ID 		uint32
decoded.portnum 71
NEIGHBORINFO_APP 		enum
decoded.payload_length 140 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 Not set int32
rx_snr Not set float
rx_time 1788195415
Receive timestamp 		fixed32
via_mqtt False
Direct LoRa transmission 		bool
want_ack False
No ACK requested 		bool
priority 70
Packet priority level 		enum
delayed Not set enum
channel Not set uint32
pki_encrypted False
Standard encryption 		bool
next_hop Not set uint32
relay_node 2
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1788195415.8122792
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: PKI
  • ✓ Gateway node ID tracked
  • ✓ Zero-hop: direct from source to MQTT gateway
Exposure Risks:
  • âš  Packet visible to MQTT subscribers
MQTT-Specific Fields
Gateway ID: !efffff02
Zero Hop Policy: Enabled
Direct gateway connection
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:NEIGHBORINFO_APP
Size:140 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "node_id": 4026531586, "last_sent_by_id": 4026531586, "node_broadcast_interval_secs": 14400, "neighbors": [ { "node_id": 4186812560, "snr": -9.0, "last_rx_time": null, "node_broadcast_interval_secs": null, "last_rx_time_str": "Unknown", "node_name": "RN3ABX Georgy 2 (ABX2)" }, { "node_id": 71093588, "snr": 11.5, "last_rx_time": null, "node_broadcast_interval_secs": null, "last_rx_time_str": "Unknown", "node_name": "Lukdut HA (cd54)" }, { "node_id": 4026531585, "snr": 11.25, "last_rx_time": null, "node_broadcast_interval_secs": null, "last_rx_time_str": "Unknown", "node_name": "SYSXX BGW8 (SXB8)" }, { "node_id": 49088900, "snr": 11.0, "last_rx_time": null, "node_broadcast_interval_secs": null, "last_rx_time_str": "Unknown", "node_name": "Gen. Glagoleva str. 868 (G868)" }, { "node_id": 2510990972, "snr": -1.0, "last_rx_time": null, "node_broadcast_interval_secs": null, "last_rx_time_str": "Unknown", "node_name": "RN3ABX Georgy 1 (ABX1)" }, { "node_id": 67713288, "snr": -1.0, "last_rx_time": null, "node_broadcast_interval_secs": null, "last_rx_time_str": "Unknown", "node_name": "Messer (MAKS)" }, { "node_id": 3440756098, "snr": 5.0, "last_rx_time": null, "node_broadcast_interval_secs": null, "last_rx_time_str": "Unknown", "node_name": "SZAO c582 (c582)" }, { "node_id": 67541100, "snr": 8.25, "last_rx_time": null, "node_broadcast_interval_secs": null, "last_rx_time_str": "Unknown", "node_name": "NERV_Mnevniki (NERV)" }, { "node_id": 1770344112, "snr": 12.0, "last_rx_time": null, "node_broadcast_interval_secs": null, "last_rx_time_str": "Unknown", "node_name": "Dero Base 8 (drb8)" }, { "node_id": 80065568, "snr": 0.75, "last_rx_time": null, "node_broadcast_interval_secs": null, "last_rx_time_str": "Unknown", "node_name": "COVOX BASE 📡 (🧙)" } ], "neighbor_count": 10, "node_name": "SYSXX YGW8 (SXY8)", "last_sent_by_name": "SYSXX YGW8 (SXY8)" }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!efffff02", "channel_id": "PKI", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 4026531586, "to": 463716760, "id": 2428587743, "rx_time": 1788195415, "rx_snr": 0.0, "rx_rssi": 0, "hop_limit": 3, "hop_start": 3, "via_mqtt": 0, "want_ack": 0, "priority": 70, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 2, "tx_after": 0, "decoded": { "portnum": 71, "payload": "0882feffff0e1082feffff0e18c070220b0890e1b6cc0f15000010c1220a08d49af3211500003841220b0881feffff0e1500003441220a088493b4171500003041220b08fcdcaaad0915000080bf220a0888f2a42015000080bf220b08828bd7e80c150000a040220a08ecb09a201500000441220b08b09d95cc061500004041220a08a0e89626150000403f", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "node_id": 4026531586, "last_sent_by_id": 4026531586, "node_broadcast_interval_secs": 14400, "neighbors": [ { "node_id": 4186812560, "snr": -9.0 }, { "node_id": 71093588, "snr": 11.5 }, { "node_id": 4026531585, "snr": 11.25 }, { "node_id": 49088900, "snr": 11.0 }, { "node_id": 2510990972, "snr": -1.0 }, { "node_id": 67713288, "snr": -1.0 }, { "node_id": 3440756098, "snr": 5.0 }, { "node_id": 67541100, "snr": 8.25 }, { "node_id": 1770344112, "snr": 12.0 }, { "node_id": 80065568, "snr": 0.75 } ], "type": "protobuf", "portnum": "NEIGHBORINFO_APP", "message_class": "NeighborInfo" } } } }
Raw Packet Data (140 bytes)
0882feffff0e1082feffff0e18c070220b0890e1b6cc0f15000010c1220a08d49af3211500003841220b0881feffff0e1500003441220a088493b4171500003041220b08fcdcaaad0915000080bf220a0888f2a42015000080bf220b08828bd7e80c150000a040220a08ecb09a201500000441220b08b09d95cc061500004041220a08a0e89626150000403f
Hex Analysis:
Size:140 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 Channel Timestamp Actions
SYSXX YGW8 (SXY8) Primary 0.000s
Reference 		Unknown Unknown 0 PKI 2026-08-31 19:56:55 Current
RN3ABX Georgy 2 (ABX2) +5.422s
After 		-104.0 dBm 7.00 dB 1 PKI 2026-08-31 19:57:01 View
Aster-02 (AST2) +19.222s
After 		-98.0 dBm -9.50 dB 3 PKI 2026-08-31 19:57:15 View
3

Total Receptions

3

Unique Gateways