Which network monitoring tool can provide a complete audit trail of basic information of all IP flows on a Cisco router and forward the data to a device?

The network monitoring tool that can provide a complete audit trail of basic information of all IP flows on a Cisco router and forward the data to a device is called NetFlow.

Here are the steps on how it works:

1. Enable NetFlow: The first step is to enable NetFlow on your Cisco router. This can be done by entering the global configuration mode on your router and using the 'ip flow-export' command.

2. Configure NetFlow: After enabling NetFlow, you need to configure it to capture the data you want. This can be done by specifying the source and destination IP addresses, the source and destination ports, the IP protocol, and the type of service.

3. Forward Data: Once NetFlow is configured, it will start capturing data and storing it in the NetFlow cache. You can then configure NetFlow to forward this data to a specified device. This is done by using the 'ip flow-export destination' command.

4. Analyze Data: The final step is to analyze the data that has been forwarded to your device. There are many different tools available for this, but some of the most popular ones include SolarWinds NetFlow Traffic Analyzer, PRTG Network Monitor, and ManageEngine NetFlow Analyzer.

Remember, NetFlow only provides a snapshot of your network traffic. If you need a more detailed analysis, you may need to use other tools or techniques.