Capture traffic from Multiple Devices

Environment

Fiddler Everywhere 1.0.0 and above
Operating System Windows, macOS, Linux

Description

Fiddler Everywhere can simultaneously capture traffic from multiple remote computers and devices (like Android and iOS smartphones). What is the needed configuration, and how can I differentiate the traffic from each individual device?

Solution (for Remote Computers)

Before you start, verify that the host and the remote computer are on the same network, and they "see" each other (no firewall restrictions).

To capture traffic from a remote computer:

  1. Start Fiddler Everywhere on the host computer and enable Live Traffic (system capture).

  2. Ensure your are ready to capture system traffic.

  3. Go to Settings > Connections and ensure Allow remote computers to connect is checked.

  4. On the remote computer, set the proxy settings to the machine name of the Fiddler host at port 8866.

  5. In Fiddler Everywhere, filter the traffic through the Client IP column while using the local address of the connected remote computer.

    Filtering by Client IP

Solution (for Mobile Devices)

  • The Fiddler host and the remote mobile device must both be on the same network, and they must "see" each other (no firewall restrictions).

To capture traffic from a remote mobile device, follow this steps:

  1. Start Fiddler Everywhere on the host computer and enable Live Traffic (system capture).

  2. Ensure your are ready to capture system traffic.

  3. Go to Settings > Connections and ensure Allow remote computers to connect is checked.

  4. Follow the specific instructions for the different mobile operating systems as described here:

  5. In Fiddler Everywhere, filter the traffic through the Client IP column while using the local address of the connected remote mobile device.

    Filtering by Client IP