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Port Span
Posted: Thu Aug 16, 2012 11:22 am
by Dev_BR
Is it possible to redirect (mirror) all router trafic to a specific fisical port ?
Its for protocol analyse ourpose / monitoring.
Re: Port Span
Posted: Wed Jul 31, 2013 2:26 am
by Dev_BR
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Re: Port Span
Posted: Wed Jul 31, 2013 12:41 pm
by pbix
Port Mirroring is usually accomplished with the -tee target and iptables. To my knowledge the -tee target is not included by default so you will have to install some packages or rebuild you kernel.
Getting the -tee target to work is sometimes an issue it seems. Just check the forum over at OpenWRT for examples.
One person wrote a program that looks interesting.
http://code.google.com/p/port-mirroring.
So it is possible but not a simple as it should be.