Don't your APs have static IPs? I was suggesting it was more likely to be a wireless device, rather than the AP itself.
Try a telnet on various port numbers and see if you can get response from the IP address to determine what the device(s) are.... Otherwise ping it and start unplugging things till you find it (best do that out of hours, unless you want your boss to smack you around the head, assuming the unit is powered up out of normal office hours). Or blacklist the mac address in your DHCP and assign it an address not in your range and see who phones up and says my "iPhone / laptop from home / etc isn't working anymore." -----Original Message----- From: John Aldrich [mailto:[email protected]] Sent: 12 July 2011 16:08 To: NT System Admin Issues Subject: RE: NIC manufacturers Non-managed switches, unfortunately. We do have a few wireless access points, but the MAC address doesn't match up with them AFAICT. -----Original Message----- From: Matthew B Ames [mailto:[email protected]] Sent: Tuesday, July 12, 2011 7:34 AM To: NT System Admin Issues Subject: RE: NIC manufacturers iPhones, etc. maybe? Do you run a wireless network? Any rogue APs, etc? Managed or non-managed switches? -----Original Message----- From: John Aldrich [mailto:[email protected]] Sent: 12 July 2011 11:44 To: NT System Admin Issues Subject: NIC manufacturers I was looking at my DHCP clients and noticed that I have a few machines that are NOT identified. Looking up the MAC address online I see that it's registered to "private." Any idea what the heck is up with that? Any suggestions on how to find it, assuming it's NOT a PC? (I know I have several devices who's MAC address is registered to Apple, and we have no Macs here, so...) -- Thanks, John Aldrich Blueridge Industries IT Manager ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to [email protected] with the body: unsubscribe ntsysadmin This email and any attachments to it may be confidential and are intended solely for the use of the individual to whom it is addressed. If you are not the intended recipient of this email, you must neither take any action based upon its contents, nor copy or show it to anyone. Please contact the sender if you believe you have received this email in error. QinetiQ may monitor email traffic data and also the content of email for the purposes of security. QinetiQ Limited (Registered in England & Wales: Company Number: 3796233) Registered office: Cody Technology Park, Ively Road, Farnborough, Hampshire, GU14 0LX http://www.qinetiq.com. ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to [email protected] with the body: unsubscribe ntsysadmin ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to [email protected] with the body: unsubscribe ntsysadmin This email and any attachments to it may be confidential and are intended solely for the use of the individual to whom it is addressed. If you are not the intended recipient of this email, you must neither take any action based upon its contents, nor copy or show it to anyone. Please contact the sender if you believe you have received this email in error. QinetiQ may monitor email traffic data and also the content of email for the purposes of security. QinetiQ Limited (Registered in England & Wales: Company Number: 3796233) Registered office: Cody Technology Park, Ively Road, Farnborough, Hampshire, GU14 0LX http://www.qinetiq.com. ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to [email protected] with the body: unsubscribe ntsysadmin
