Web UI

The Packet Squirrel Mark II web UI is enabled during Arming & Configuration mode. It is not enabled by default in payload modes, but a payload can enable it via the UI_START command.

This web UI shows the current status and configuration and allows for editing of payloads directly on the device.


The dashboard is the landing page of the Packet Squirrel UI. On it you will find the currently installed payloads, the current switch position, and a graphical representation of the Packet Squirrel hardware.

On loading the dashboard, the Packet Squirrel may alert that an Internet connection is not available. To connect your Packet Squirrel to the Internet, plug the Network Ethernet port into a network with DHCP and Internet access.

Internet access is only required for connecting to a Cloud C² server, downloading packages, and similar actions. It is not required for basic setup, local editing of payloads, or other configuration.

Web terminal

In the upper right of the Packet Squirrel UI is the web terminal.

This launches an in-browser terminal session to the Packet Squirrel. This is equivalent to a ssh connection, and gives full access to the low-level interface to the device.

Payload editors

The Packet Squirrel supports 3 payload slots, selectable by the payload switch; these can be downloaded and uploaded or edited live via the web UI, edited on the device via ssh, or copied to the device via scp or other file copy tools.

The Packet Squirrel web UI contains a basic editing environment:

Within the payload editor you can live-edit the payloads, download the payload to your computer for local editing, and upload local files to a payload slot.

Looking for more information about creating payloads? Check out the Payload Development guide!


The settings page of the web UI is used to change the password and timezone, as well as changing the hostname used when the device requests an address over DHCP.

Additionally, the settings page is used to upload a Cloud C² configuration file, view connected USB devices, and set the UI theme.

The network category under the settings page will show the current network interface states and any addresses assigned to them:

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