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March 3, 2009 02:13 AM

Categories: WGR614L (Legacy Product)

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Goddchen

Member
Joined: 02/12/2009

Hi everyone :)

I need to attach a monitor device to my WGR614L. I'll run tcpdump there and need to monitor the traffic of another machine which is connected on one of the LAN ports.

Is there any way to achieve this?

Since it's a switch in the router and not a hub i won't receive any packets which are not addressed to my mac address.

Any ideas?

Goddchen

Discussion:    Add a Comment | Comments 1-5 of 5 | Latest Comment

March 3, 2009 1:29 PM updated: March 3, 2009 1:30 PM

The iptables ROUTE target (experimental) offers an option to clone traffic-

 --tee             Route a copy of the packet, but continue traversing the rules with the original packet, undisturbed. 

http://www.netfilter.org/projects/patch-o-matic/pom-external.html

Hope this helps,

Charlie

PacketProtector- OpenWrt + FreeRADIUS + OpenVPN + Snort + DansGuardian + ClamAV

March 4, 2009 3:30 AM

Hey, thx!
It's works perfectly :)
i did


iptables -A -t mangle -s -j ROUTE --gw --tee

great :)

March 12, 2009 2:15 AM

btw: have a look here, i wrote a little blog post explaining my solution
http://blog.goddchen.de/2009/03/port-mirroring-span-port-monitor-port-with-ip...

March 13, 2009 12:55 AM

Good to know that it is working. It would be nice if you can write an article and post it in MOR.

March 13, 2009 8:19 AM

Submitted the article, it's in moderation queue right now...

Discussion:    Add a Comment | Back to Top | Comments 1-5 of 5 | Latest Comment

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