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New Member

Unknown address

I have found a IP address on a scan that is out of my DHCP range and the subnet mask. There are only a router and a single computer on this network, yet I am getting three address on the scan. Where is this address coming from, any ideas?

2 REPLIES
Cisco Employee

Re: Unknown address

Hi King,

Seems odd, as if you are physically at the same location then you can just verify if there are any additional ports in the switch/hub? also see using the "show arp" if you see any MAC address associated with that address, maybe one of the two devices which are attached directly is Proxy-ARPing for that address.

hope this helps,

Regards,

Aamir

-=-=-

New Member

Re: Unknown address

Possibly a multi-homed workstation or server... the other nic may not be plugged in... but is being picked up on the scan via the other nic...

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