Packet #2877200

Packet Information

Database ID:	2877200
Mesh Packet ID:	`0x432f7143` Used for correlation across gateways
Timestamp:	2025-11-29 04:01:10 UTC
From Node:	K2XAP / nyme.sh (XAP)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	TEXT_MESSAGE_APP Port: 1

Gateway:	Cams Rak4631 (CARA)
Channel:	LongFast
RSSI:	-46 dBm
SNR:	6.5 dBm
Hop Info:	5/5 hops Start: 5, Limit: 0
Relay Node:	`f4` CAMR Last byte of the last hop that relayed this packet - Candidate source node(s) based on 0-hop direct receptions

Payload Data

Protocol: TEXT_MESSAGE_APP

Size: 38 bytes

Decoded: Yes

Text Content:

572 nodes seen since reset 9 days ago.

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:	38 bytes
Gateway:	!953f7321
Channel:	LongFast
Payload Type:	TEXT_MESSAGE_APP
Hop Count:	5 / 5

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

Field	Value
`gateway_id`	`!953f7321` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (38 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`2334104039` Source node ID	uint32
`to`	`4294967295` (Broadcast) Visible to all nodes	uint32
`decoded.portnum`	`1` TEXT_MESSAGE_APP	enum
`decoded.payload_length`	`38` bytes	size
`hop_limit`	Not set	uint32
`hop_start`	`5` Initial hop limit	uint32
`hops_taken`	`5` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-46.0` dBm Signal strength at gateway	int32
`rx_snr`	`6.50` dB Signal quality at gateway	float
`rx_time`	`1764388982` 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`	`1764388870.6388423` 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 (5 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!953f7321`
Signal Metrics:	RSSI: -46.0 dBm SNR: 6.50 dB

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!953f7321", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2334104039, "to": 4294967295, "id": 1127182659, "rx_time": 1764388982, "rx_snr": 6.5, "rx_rssi": -46, "hop_limit": 0, "hop_start": 5, "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": 1, "payload": "353732206e6f646573207365656e2073696e6365207265736574203920646179732061676f2e", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "text": "572 nodes seen since reset 9 days ago.", "type": "text_message", "portnum": "TEXT_MESSAGE_APP" } } } }

Raw Packet Data (38 bytes)

353732206e6f646573207365656e2073696e6365207265736574203920646179732061676f2e

Hex Analysis:

Size:	38 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
Cams Rak4631 (CARA) Primary	0.000s Reference	-46.0 dBm	6.50 dB	5	`f4` CAMR	LongFast	2025-11-29 04:01:10 UTC	Current
K2XAP / nyme.sh (XAP)	-37.848s Before	Unknown	Unknown	0	`e7` XAP	LongFast	2025-11-29 04:00:32 UTC	View
ClaremontWx.net (CmWx)	-37.330s Before	-49.0 dBm	7.00 dB	0	`e7` XAP	LongFast	2025-11-29 04:00:33 UTC	View
Sunset Soda (p8p)	-35.880s Before	-121.0 dBm	-9.50 dB	1	`57` CmWx	LongFast	2025-11-29 04:00:34 UTC	View
Gowanus Soda (p1p)	-35.851s Before	-124.0 dBm	-15.75 dB	1	`57` CmWx	LongFast	2025-11-29 04:00:34 UTC	View
dkTowerBot (dkTB)	-34.583s Before	-107.0 dBm	-17.50 dB	2	`81` Titi , JLO9	LongFast	2025-11-29 04:00:36 UTC	View
Steiner Studios Tower (SST)	-34.578s Before	-113.0 dBm	-9.25 dB	2	`81` Titi , JLO9	LongFast	2025-11-29 04:00:36 UTC	View
Fried Fish 1 \| nyme.sh (FF1)	-34.526s Before	-104.0 dBm	-12.00 dB	2	`81` d081 , Titi	LongFast	2025-11-29 04:00:36 UTC	View
MeshM0xie (M0x)	-33.809s Before	-94.0 dBm	-0.75 dB	1	`c9` Penn	LongFast	2025-11-29 04:00:36 UTC	View
Psalm 23 (3:16)	-33.614s Before	-118.0 dBm	-7.00 dB	2	`81` Titi	LongFast	2025-11-29 04:00:37 UTC	View
DRP1 Chelsea (DRP1)	-33.400s Before	-78.0 dBm	6.00 dB	1	`c9` Penn , JLX3	LongFast	2025-11-29 04:00:37 UTC	View
CBZ0 🚕 mobile (CBZ0)	-33.325s Before	-116.0 dBm	-8.50 dB	1	`c9` Penn , JLX3	LongFast	2025-11-29 04:00:37 UTC	View
Claudiopolis-440c (440c)	-33.054s Before	-90.0 dBm	-5.00 dB	1	`c9` Penn , JLX3	LongFast	2025-11-29 04:00:37 UTC	View
Meshtastic f5c8 (f5c8)	-32.721s Before	-102.0 dBm	-10.25 dB	3	`b9` NYCR	LongFast	2025-11-29 04:00:37 UTC	View
Meshtastic 631c (631c)	-32.642s Before	-87.0 dBm	1.50 dB	3	`b9` NYCR	LongFast	2025-11-29 04:00:37 UTC	View
YMH 2 @ Your Mom’s House (YMH2)	-31.243s Before	-60.0 dBm	2.75 dB	2	`90` NLG1	LongFast	2025-11-29 04:00:39 UTC	View
YMH 1 @ Your Mom’s House (YMH1)	-19.366s Before	-122.0 dBm	-13.50 dB	4	`fc`	LongFast	2025-11-29 04:00:51 UTC	View
Lv4 - Heltec V4 Green (Lv4)	+228.049s After	-54.0 dBm	5.75 dB	3	`35` JLX5	LongFast	2025-11-29 04:04:58 UTC	View

18

Total Receptions

18

Unique Gateways

Packet #2877200 Success