computer/network knowledgibles - SV650.org

Dave20046 · 17-06-09, 08:52 AM

Got a bit of a problem wondering if anyone can give me a hand.
I need to find the IP address of a device on my network, the **** that was here before me messed with my switch and didn't record the details. All I have is the physical box, it's mac address and it's serial number. I can't nuke it as the only way to do so is with a command line through a console cable which apparently no one in sheffield knows what it is.

Any ideas?

17-06-09, 08:57 AM

cmd -> ipconfig?

ophic · 17-06-09, 09:07 AM

ping the whole network, then run arp -a and look for the mac address.

Dave20046 · 17-06-09, 09:10 AM

Quote:

Originally Posted by ophic

ping the whole network, then run arp -a and look for the mac address.

Would that have the same result as scouring my dhcp pool for the mac address?

worth a pop anyway cheers ophic

Dave20046 · 17-06-09, 09:11 AM

Quote:

Originally Posted by Kinvig

cmd -> ipconfig?

Nice try but switches don't have keyboards and monitors unfortunately

Cheers anyway kinvig

timwilky · 17-06-09, 09:14 AM

Quote:

Originally Posted by Dave20046

Would that have the same result as scouring my dhcp pool for the mac address?

worth a pop anyway cheers ophic

Not really, I would never put static devices on dhcp, unless with a reserved address.

ophic · 17-06-09, 09:17 AM

Quote:

Originally Posted by Dave20046

Would that have the same result as scouring my dhcp pool for the mac address?

worth a pop anyway cheers ophic

Not quite - my method would work regardless of whether it uses dhcp or not

Dave20046 · 17-06-09, 09:20 AM

Quote:

Originally Posted by timwilky

Not really, I would never put static devices on dhcp, unless with a reserved address.

We've had a new server meaning the reservation for the switch has gone, and there is no record of it's ip address (unless it is getting it from dhcp) so I want to find the IP to give it a reservation and hopefully it'll start behaving.

Dave20046 · 17-06-09, 09:20 AM

Quote:

Originally Posted by ophic

Not quite - my method would work regardless of whether it uses dhcp or not

cool ta, just doing a scan now

17-06-09, 09:21 AM

Switches normally have a console port, can you not login directly to the switch via that and find the IP address?

17-06-09, 08:52 AM	#1
Dave20046 Member Mega Poster Join Date: Jul 2008 Location: Sheffield Posts: 10,274	computer/network knowledgibles Got a bit of a problem wondering if anyone can give me a hand. I need to find the IP address of a device on my network, the **** that was here before me messed with my switch and didn't record the details. All I have is the physical box, it's mac address and it's serial number. I can't nuke it as the only way to do so is with a command line through a console cable which apparently no one in sheffield knows what it is. Any ideas? __________________

17-06-09, 08:57 AM	#2
Kinvig Guest Posts: n/a	Re: computer/network knowledgibles cmd -> ipconfig?

17-06-09, 09:07 AM	#3
ophic Member Mega Poster Join Date: Jan 2004 Location: Whyteleafe Posts: 3,395	Re: computer/network knowledgibles ping the whole network, then run arp -a and look for the mac address. __________________ Silver SV650SK3, Fuel exhaust

17-06-09, 09:21 AM	#10
jamesw1024 Guest Posts: n/a	Re: computer/network knowledgibles Switches normally have a console port, can you not login directly to the switch via that and find the IP address?

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