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1 edit | reply to tekmunki
Re: Cisco ASDM Log (Deny Reverse Path Check)
said by tekmunki  :"show arp" didn't give me anything related to the 169 addresses, what other method did you have in mind to find the mac? I can easily track the mac down if I can find it.  You will need a hub that you can place between all the uplinks to the router and the actual router itself. You will then need to download Wireshark ( »www.wireshark.org/ ) and capture packets from the wire in promiscuous mode to grab the MAC address.
If you don't have a hub, you'll have to use port mirroring. Port mirroring is the preferred method, BTW, as it will cause the least amount of disruption to the network.
Ignore the port mirroring part... Just realized you are using an ASA and it doesn't have the ports to do it IIRC (you need at least TWO on the LAN side).
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