Mirror all traffic on br0 to port 4

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Cobra1582
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Joined: 29 Nov 2011
Posts: 104

PostPosted: Sun Feb 19, 2023 21:17    Post subject: Mirror all traffic on br0 to port 4 Reply with quote
Hi looking to mirror all traffic hitting the bridge so I get the internal and external IP together. Did it before with TCPdump but now have a dedicated box running suricate and Zeek which has a dedicated port sniffing any traffic.

How would one go about doing this, please?

Many Thanks, Damien
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TCB13
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Joined: 06 Jun 2010
Posts: 260
Location: Portugal

PostPosted: Wed Feb 22, 2023 20:43    Post subject: Reply with quote
What do you mean by "get the internal and external IP together"?
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feliciano
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Joined: 24 Oct 2008
Posts: 1079
Location: Latin America

PostPosted: Thu Mar 09, 2023 0:10    Post subject: Reply with quote
Have you looked at "mangle" and "tee" of iptables? (assuming the build you're using runs iptables).
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