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How to use pfsense as a transparent sniffer only

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crevettedragon:
Hi,

Here is my use case: I want to upgrade my current internet box with a pfsense box. However, the traffic between the tv box and the internet box is special and I want to investigate it to be able to properly configure my pfsense box.


As such I want a "sneaky" pfsense that will simply log all traffic and act as a simple Ethernet cable from the internet and tv box perspective.

What would be the best way to do it ?

Derelict:
Why wouldn't you just use a switch with a mirror port there and do whatever you want with the traffic? Wireshark, tcpdump, etc.

Certainly easier than trying to be transparent with a proxy.

You don't need to hammer a square firewall into that round hole.

HackedComputer:

--- Quote from: Derelict on February 01, 2018, 07:33:29 pm ---Why wouldn't you just use a switch with a mirror port there and do whatever you want with the traffic? Wireshark, tcpdump, etc.

Certainly easier than trying to be transparent with a proxy.

You don't need to hammer a square firewall into that round hole.

--- End quote ---

This or a LAN TAP such as a Throwing Star LAN TAP

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