Little help please Network Gurus

Pumpkinstew · 03-03-2010, 17:38

I'm using a standalone network and have a web-cam attached. You dial into it simply by putting the IP address into a browser and the image shows up on screen. Dead easy.

Sadly the IP address has been lost in the mists of time and no-one saw fit to write it down.
The mac address is helpfully stuck on the camera so.... any way of determining the IP of a device from the mac id?

Burble · 03-03-2010, 17:58

If your network range is 192.168.0.0 - 192.168.0.255 then from a machine in that subnet ping the broadcast address (192.168.0.255 in this case) then open a command prompt and do 'arp -a' and you'll get a list of MAC addresses and associated IP addresses.

Pumpkinstew · 03-03-2010, 20:40

Cheers, Burble.

I'll give that a try tomorrow.

Mark · 03-03-2010, 22:12

Alternatively, some routers have ways to list local IP addresses they know about. Obviously depends on the router you've got whether (and how) you can do that.

Wyrdo · 04-03-2010, 12:02

Surely the web cam is attached to a PC and that's the IP address you're looking for? Or is the camera a standalone device?

Burble · 04-03-2010, 12:11

Quote:

Originally Posted by Wyrdo

Surely the web cam is attached to a PC and that's the IP address you're looking for? Or is the camera a standalone device?

Standalone I assume.

Pumpkinstew · 04-03-2010, 13:36

Yeah, the cam is standalone. Turns out the archaic BNC wiring that the camera is connected to is knackered anyway so it's all been a bit futile. The arp -a command is pretty useful for the future though.

Dr. Z · 04-03-2010, 19:57

nmap will tell you all! You can get a windows version too which has a GUI called Zenmap.

03-03-2010, 17:38	#1
Pumpkinstew Absinthe Join Date: Oct 2007 Location: Mostly Oxford, Sometimes Bristol Posts: 1,156	Little help please Network Gurus I'm using a standalone network and have a web-cam attached. You dial into it simply by putting the IP address into a browser and the image shows up on screen. Dead easy. Sadly the IP address has been lost in the mists of time and no-one saw fit to write it down. The mac address is helpfully stuck on the camera so.... any way of determining the IP of a device from the mac id? __________________ Get old, or die tryin' PSTEWREVIEWS - Chunks of Meaty Reviews, Mixed with Your Five a Day of News, Comment and Opinion, Floating in a Broth of Suspect Grammar and Seasoned Liberally with Mixed Metaphor. Tasty.

03-03-2010, 20:40	#3
Pumpkinstew Absinthe Join Date: Oct 2007 Location: Mostly Oxford, Sometimes Bristol Posts: 1,156	Cheers, Burble. I'll give that a try tomorrow. __________________ Get old, or die tryin' PSTEWREVIEWS - Chunks of Meaty Reviews, Mixed with Your Five a Day of News, Comment and Opinion, Floating in a Broth of Suspect Grammar and Seasoned Liberally with Mixed Metaphor. Tasty.

04-03-2010, 13:36	#7
Pumpkinstew Absinthe Join Date: Oct 2007 Location: Mostly Oxford, Sometimes Bristol Posts: 1,156	Yeah, the cam is standalone. Turns out the archaic BNC wiring that the camera is connected to is knackered anyway so it's all been a bit futile. The arp -a command is pretty useful for the future though. __________________ Get old, or die tryin' PSTEWREVIEWS - Chunks of Meaty Reviews, Mixed with Your Five a Day of News, Comment and Opinion, Floating in a Broth of Suspect Grammar and Seasoned Liberally with Mixed Metaphor. Tasty.

04-03-2010, 19:57	#8
Dr. Z I'm going for a scuttle... Join Date: Jul 2006 Posts: 2,021	nmap will tell you all! You can get a windows version too which has a GUI called Zenmap. __________________

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03-03-2010, 17:58	#2
Burble Rocket Fuel Join Date: Jul 2006 Posts: 7,826	If your network range is 192.168.0.0 - 192.168.0.255 then from a machine in that subnet ping the broadcast address (192.168.0.255 in this case) then open a command prompt and do 'arp -a' and you'll get a list of MAC addresses and associated IP addresses.

03-03-2010, 22:12	#4
Mark Screaming Orgasm Join Date: Jul 2006 Location: Newbury Posts: 15,194	Alternatively, some routers have ways to list local IP addresses they know about. Obviously depends on the router you've got whether (and how) you can do that.

04-03-2010, 12:02	#5
Wyrdo Long Island Iced Tea Join Date: Oct 2008 Posts: 197	Surely the web cam is attached to a PC and that's the IP address you're looking for? Or is the camera a standalone device?