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USB Presenter Capture: Difference between revisions
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== Requirements == | == Requirements == | ||
This feature is supported by all Allegro Network Multimeters | This feature is supported by all Allegro Network Multimeters (also VM) from firmware release V3.0. | ||
As of now, the Logitech R400 is supported. Allegro will add more presenters on request. An optional USB sound device will play a beep when a key has been pressed. | As of now, the '''Logitech R400''' is supported. Allegro will add more presenters on request. An optional USB sound device will play a beep when a key has been pressed. | ||
It requires a free USB 2.0 (or higher) port on the Allegro. An internal or external disk needs to be configured at '''Generic''' → '''Storage,''' and a [[Packet ring buffer|ring buffer]] must be configured. | |||
Please note that the capture initiated by this feature is extracted from the ring buffer, and ring buffer filter rules for packet slicing will affect exported pcaps. | |||
== USB Capture Trigger Setup == | == USB Capture Trigger Setup == | ||
Connect the Logitech R400 USB dongle | Connect the Logitech R400 USB dongle to the Allegro. If you have a Virtual Edition Allegro, please pass-through the USB device directly to the Allegro VM. | ||
Once this is done, navigate to the '''Settings''' -> '''Expert settings''' page and open the '''USB capture trigger'''. | Once this is done, navigate to the '''Settings''' -> '''Expert settings''' page and open the '''USB capture trigger'''. | ||
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[[File:Presenter dialog.png|600px]] | [[File:Presenter dialog.png|600px]] | ||
The | Whenever a key on the presenter is pressed, a pcap will be generated. | ||
NOTE! - The pcap end-time, is when the button on the presenter is pressed and the start time is defined by the capture interval. | |||
This means, that a configured interval of 60 seconds, will generate a capture (pcap) of the 60 seconds prior to when a presenter key was pressed. | |||
Captures are stored in the root directory of the storage partition or, if enabled, in the upload directory (cue) for periodic/automated SFTP uploads. | |||
== SFTP Export Setup == | == SFTP Export Setup == | ||
The Allegro can automatically upload pcap files to an SFTP server from the upload directory on the disk. To configure it, please navigate to '''Settings''' → '''Remote Access and Export''' → '''Pcap export via SFTP'''. This allow to export all captured pcap files at a certain time of day. As example it can be used to transfer pcaps during the night from remote locations to a central SFTP server. | The Allegro can automatically upload pcap files to an SFTP server from the upload directory on the disk. | ||
To configure it, please navigate to '''Settings''' → '''Remote Access and Export''' → '''Pcap export via SFTP'''. | |||
This allow to export all captured pcap files at a certain time of day. As example it can be used to transfer pcaps during the night from remote locations to a central SFTP server. | |||
[[File:Sftp export.png|1000px]] | [[File:Sftp export.png|1000px]] | ||
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== Advanced Multi-pcap Setup == | == Advanced Multi-pcap Setup == | ||
There are situations where the Allegro | There are situations where the Allegro may be configured to record multiple separate pcaps, each with specific filters, with only one button-press on the usb-presenter. | ||
This can be done by enabling the '''USB capture filter''' in the '''USB capture trigger''' dialog. Filter syntaxes are described in the [[Capture module]]. | |||
A good example is the installation of an Allegro 500 with 2 links and 2 virtual link groups ( see [[Virtual Link Group Configuration Guide]]), one before and one behind the firewall. | A good example is the installation of an Allegro 500 with 2 links and 2 virtual link groups ( see [[Virtual Link Group Configuration Guide]]), one before and one behind the firewall. | ||
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[[File:Presenter filter group.png|600px]] | [[File:Presenter filter group.png|600px]] | ||
As a second example you can record pcaps of up to 4 different IP addresses at the same time with just one click. | |||
As a second example, you can record pcaps of up to 4 different IP addresses at the same time with just one click. | |||
[[File:Presenter filter ip.png|600px]] | [[File:Presenter filter ip.png|600px]] | ||