byediteur05-05-201811:29 AM - edited 05-06-201809:57 AM
Question: What does a TAP interface do and how does it work?
Answer: TAP interface is used to get a copy of all traffic across the designated port, any interface can be a TAP interface except management.
We need a bigger board -- you agree?
Expanding on that answer... A network tap is a device that provides a way to access data flowing across a computer network. Tap mode deployment allows you to passively monitor traffic flows across a network by way of a switch SPAN or mirror port.
The SPAN or mirror port permits the copying of traffic from other ports on the switch. By dedicating an interface on the firewall as a tap mode interface and connecting it with a switch SPAN port, the switch SPAN port provides the firewall with the mirrored traffic. This provides application visibility within the network without being in the flow of network traffic.
When deployed in tap mode, the firewall is not able to take action, such as block traffic or apply QoS traffic control.
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XML API might seem complex and daunting, but it's extremely powerful at the same time. Check out this blog that explains how you can get the config logs from your device using the XML API. Up to you to improvise, adapt, and discover other ways to use this powerful tool! @kiwi
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