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Update README for network scanning and packet capture #56

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Jan 23, 2025
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Update README for network scanning and packet capture #56

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36 changes: 36 additions & 0 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -137,6 +137,42 @@ Some devices (like older Aqara sensors) may not migrate.
$ zigpy radio znp /dev/ttyUSB0 change-channel --channel 25
```

## Network scan

On supported radios, you can perform an active beacon scan for nearby 802.15.4 networks:

```console
$ zigpy radio ezsp /dev/ttyUSB0 network-scan --channels 11,15,20,25 --duration-exponent 3
channel: 11, network: 0x1D13 (00:07:81:00:0e:e9:d8:9f), permitting joins: 1, nwk update id: 0, lqi: 180, rssi: -66
channel: 11, network: 0x2857 (00:07:81:00:fc:9e:ef:95), permitting joins: 0, nwk update id: 0, lqi: 224, rssi: -55
channel: 11, network: 0x08C7 (00:07:81:00:50:d2:be:2e), permitting joins: 0, nwk update id: 0, lqi: 216, rssi: -57
channel: 15, network: 0x2ABB (00:07:81:00:c5:10:10:4b), permitting joins: 0, nwk update id: 0, lqi: 212, rssi: -58
Scanning channel 15
```

## Packet capture

On supported radios, you can capture packets and pipe the PCAP output to Wireshark:

```console
$ zigpy radio ezsp /dev/cu.SLAB_USBtoUART14 packet-capture -c 12,13,14,26 --interleave --channel-hop-period 1 -o - | wireshark -k -S -i -
```

If you have multiple adapters, you can capture with multiple interfaces concurrently:

```console
(
zigpy radio ezsp /dev/cu.SLAB_USBtoUART packet-capture -c 11 --interleave -o - &
zigpy radio ezsp /dev/cu.SLAB_USBtoUART8 packet-capture -c 15 --interleave -o - &
zigpy radio ezsp /dev/cu.SLAB_USBtoUART10 packet-capture -c 20 --interleave -o - &
zigpy radio ezsp /dev/cu.SLAB_USBtoUART13 packet-capture -c 25 --interleave -o - &
zigpy radio ezsp /dev/cu.SLAB_USBtoUART14 packet-capture -c 12,13,14,26 --interleave --channel-hop-period 1 -o - &
zigpy radio ezsp /dev/cu.SLAB_USBtoUART17 packet-capture -c 16,17,18,19 --interleave --channel-hop-period 1 -o - &
zigpy radio ezsp /dev/cu.SLAB_USBtoUART18 packet-capture -c 21,22,23,24 --interleave --channel-hop-period 1 -o - &
wait
) | zigpy pcap interleave-combine -o - | wireshark -k -S -i -
```

# OTA
## Display basic information about OTA files
```console
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