Packet #39166165 Success
NEIGHBORINFO_APP packet from SKYZ Mobile (SKYZ) to !00000001
1
Total Receptions
1
Unique Gateways
0
Hop Count
36
Payload Bytes
Packet Information
| Database ID: | 39166165 |
|---|---|
| Mesh Packet ID: |
0x9aec7eb1
Used for correlation across gateways |
| Timestamp: | 2026-05-15 12:50:12 UTC |
| From Node: | SKYZ Mobile (SKYZ) |
| To Node: | !00000001 (0001) |
| Success: | Processed |
| Protocol: |
NEIGHBORINFO_APP
Port: 71 |
| Gateway: | SKYC - MixPreset - MQTT (SKYC) |
|---|---|
| Channel: | LongFast |
| RSSI: | Unknown |
| SNR: | Unknown |
| Hop Info: |
0/7 hops
Start: 7, Limit: 7 |
| Relay Node: |
78
SKYZ
Last byte of the last hop that relayed this packet - Candidate source node(s) based on 0-hop direct receptions |
Payload Data
Protocol: NEIGHBORINFO_APP
Size: 36 bytes
Decoded:
Yes
Decoded Data:
Neighbor Information Report
| Reporting Node: | SKYZ Mobile (SKYZ) |
|---|---|
| Last Sent By: | SKYZ Mobile (SKYZ) |
| Broadcast Interval: | 14400 seconds |
| Neighbors Found: | 2 |
2
Active Neighbors
Neighbor Details
| Neighbor Node | SNR | Last Heard | Broadcast Interval | Signal Quality |
|---|---|---|---|---|
| SKYB - LongFast (SKYB) | 5.5 dB | Unknown | Unknown | Excellent |
| SKYC - MixPreset - MQTT (SKYC) | 0.0 dB | Unknown | Unknown | Good |
This neighbor information was reported by SKYZ Mobile (SKYZ)
and shows which nodes it can directly communicate with and their signal quality.
Raw Packet Analysis
Complete field breakdown and MQTT privacy/exposure analysisPacket Structure
MQTT Packet Flow:
ServiceEnvelope (MQTT layer) → MeshPacket (Mesh layer) → Decoded Payload (Application data)
| Total Size: | 36 bytes |
|---|---|
| Gateway: | !b2a7808c |
| Channel: | LongFast |
| Payload Type: | NEIGHBORINFO_APP |
| Hop Count: | Unknown / 7 |
Privacy Summary
Exposure Level:
Direct Message
Direct Message
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Targeted to specific node
+ 2 more...
✓ Direct LoRa transmission (not via MQTT)
✓ Targeted to specific node
+ 2 more...
Exposure Risks:
⚠ Default channel - no encryption
⚠ Packet visible to MQTT subscribers
⚠ Default channel - no encryption
⚠ Packet visible to MQTT subscribers
MQTT ServiceEnvelope Fields
MQTT ServiceEnvelope contains the MeshPacket plus routing metadata
| Field | Value |
|---|---|
gateway_id |
!b2a7808c
Node ID format |
channel_id |
LongFast
Default public channel |
packet |
MeshPacket (36 bytes)
Contains the actual mesh network packet |
MeshPacket Fields
Core mesh packet with routing and payload information
| Field | Value | Type |
|---|---|---|
from |
1771872376
Source node ID |
uint32 |
to |
1
Target node ID |
uint32 |
decoded.portnum |
71
NEIGHBORINFO_APP |
enum |
decoded.payload_length |
36 bytes
|
size |
hop_limit |
7
Remaining hops allowed |
uint32 |
hop_start |
7
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 |
1778849411
Receive timestamp |
fixed32 |
via_mqtt |
False
Direct LoRa transmission |
bool |
want_ack |
False
No ACK requested |
bool |
priority |
10
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 |
120
Relay node ID |
uint32 |
tx_after |
Not set | uint32 |
timestamp |
1778849412.421821
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
- ✓ Gateway node ID tracked
- ✓ Zero-hop: direct from source to MQTT gateway
Exposure Risks:
- ⚠ Default channel - no encryption
- ⚠ Packet visible to MQTT subscribers
MQTT-Specific Fields
| Gateway ID: | !b2a7808c |
| 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: | 36 bytes |
| Decoded: | Yes |
Complete Payload Data (JSON):
{
"node_id": 1771872376,
"last_sent_by_id": 1771872376,
"node_broadcast_interval_secs": 14400,
"neighbors": [
{
"node_id": 1727120157,
"snr": 5.5,
"last_rx_time": null,
"node_broadcast_interval_secs": null,
"last_rx_time_str": "Unknown",
"node_name": "SKYB - LongFast (SKYB)"
},
{
"node_id": 2997321868,
"snr": 0.0,
"last_rx_time": null,
"node_broadcast_interval_secs": null,
"last_rx_time_str": "Unknown",
"node_name": "SKYC - MixPreset - MQTT (SKYC)"
}
],
"neighbor_count": 2,
"node_name": "SKYZ Mobile (SKYZ)",
"last_sent_by_name": "SKYZ Mobile (SKYZ)"
}
Complete Protobuf Decode (JSON)
{
"service_envelope": {
"gateway_id": "!b2a7808c",
"channel_id": "LongFast",
"packet": "MeshPacket (see mesh_packet below)"
},
"mesh_packet": {
"from": 1771872376,
"to": 1,
"id": 2599190193,
"rx_time": 1778849411,
"rx_snr": 0.0,
"rx_rssi": 0,
"hop_limit": 7,
"hop_start": 7,
"via_mqtt": false,
"want_ack": false,
"priority": 10,
"delayed": 0,
"channel_index": null,
"pki_encrypted": false,
"next_hop": 0,
"relay_node": 120,
"tx_after": 0,
"decoded": {
"portnum": 71,
"payload": "08f8c0f2cc0610f8c0f2cc0618c070220b089d86c7b706150000b0402206088c819e950b",
"want_response": null,
"dest": null,
"source": null,
"request_id": null,
"reply_id": null,
"emoji": null,
"parsed_payload": {
"node_id": 1771872376,
"last_sent_by_id": 1771872376,
"node_broadcast_interval_secs": 14400,
"neighbors": [
{
"node_id": 1727120157,
"snr": 5.5
},
{
"node_id": 2997321868
}
],
"type": "protobuf",
"portnum": "NEIGHBORINFO_APP",
"message_class": "NeighborInfo"
}
}
}
}
Raw Packet Data (36 bytes)
08f8c0f2cc0610f8c0f2cc0618c070220b089d86c7b706150000b0402206088c819e950b
Hex Analysis:
| Size: | 36 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 packetCorrelation: Using Mesh Packet ID
| Gateway | Time Offset | RSSI | SNR | Hops | Relay | Channel | Timestamp | Actions |
|---|---|---|---|---|---|---|---|---|
| SKYC - MixPreset - MQTT (SKYC) Primary |
0.000s
Reference |
Unknown | Unknown | 0 |
78
SKYZ
|
LongFast | 2026-05-15 12:50:12 UTC | Current |
| No other receptions found within ±2 seconds | ||||||||
1
Total Receptions
1
Unique Gateways