# VoIP Ethernet Capture on a ProSBC

| This article applies to: | Product | Version  |
| ------------------------ | ------- | -------- |
|                          | SBC     | 3.1, 3.3 |

### Capturing VoIP and Ethernet traffic

* Connect to the SBC using a ssh connection
* Start tbx\_cli\_tools\_remote (type "tbx\_cli\_tools\_remote")

The following is displayed:

```
Available remote hosts to control (TBX_GW_PORT=12358, local IPs 172.16.0.1 / 172.18.0.1). Press corresponding letter to
control:
   a : TB016634.tbrouter
   b : TB016635.gateway
   c : TB016635.logtrace
   d : TB016635.stream_server
   e : TB016635.tboam_app
   f : TB016635.tbrouter       <------------tbrouter
   g : TB016635.tbsnmpagent
   h : TB016635.tbsyslog
   i : TB016635.tbuctwriter
   j : TB016635.toolpack_engine
   k : TB016635.toolpack_sys_mgr
   l : TB016635.web_server
```

* Connect to the tbrouter application
* Start capture using the 'p' key (lowercase p), leave default parameters and press 'enter'
* Stop capture using the 'p' key (lowercase p)

### Retrieve VoIP captures

VoIP capture files (pcap/Wireshark compatible) are locate here:

```
 /lib/tb/toolpack/tbrouter/pcap
```

To download the voip capture file, use sFTP on the management port. This can be done on Windows using tools like Filezilla or WinSCP. Note: There can be multiple capture files per capture session (for example, on systems with 10Gbps network devices, because Ethernet packets on these devices are spread to multiple packets processing/capture cores)


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