Jump to content


 


Register a free account to unlock additional features at BleepingComputer.com
Welcome to BleepingComputer, a free community where people like yourself come together to discuss and learn how to use their computers. Using the site is easy and fun. As a guest, you can browse and view the various discussions in the forums, but can not create a new topic or reply to an existing one unless you are logged in. Other benefits of registering an account are subscribing to topics and forums, creating a blog, and having no ads shown anywhere on the site.


Click here to Register a free account now! or read our Welcome Guide to learn how to use this site.

Photo

Finding configuration IP address for a switch


  • Please log in to reply
5 replies to this topic

#1 RoderickUsher

RoderickUsher

  • Members
  • 2 posts
  • OFFLINE
  •  
  • Local time:01:45 PM

Posted 30 June 2010 - 05:53 PM

Hi everyone :thumbsup:

Ok. I have a CISCO Catalyst Express 500G switch on my network. The person who set the network up (before I was here) neglected to make note of the configuration IP for it. That wasn't a problem until now (I need to change a setting on the switch). I have NO idea how to find it out. I have:

checked the arp logs of several computers.
looked in the DHCP list (its not there so I'm assuming it was statically assigned)
manually tried all the addresses in the block we use (192.168.1.1-254)
The stupid 500G doesn't have a console port
I dont want to erase all the settings (because I dont know what they are!)

I have the MAC address but that seems to be less helpful then I thought it would be (RARP requesting doesnt seem to be an option)

How do I find out the config IP address for the stupid switch!

Thank you all SO MUCH in advance for your help -- really banging my head against the wall on this one.

BC AdBot (Login to Remove)

 


#2 Chuck229

Chuck229

  • Members
  • 2 posts
  • OFFLINE
  •  
  • Local time:12:45 PM

Posted 30 June 2010 - 10:19 PM

I think it usually the same as your default gateway address.

From a cmd prompt type -> ipconfig <enter>

From a web browser enter the ip address of your Default Gateway.

Edited by Chuck229, 30 June 2010 - 10:20 PM.


#3 RoderickUsher

RoderickUsher
  • Topic Starter

  • Members
  • 2 posts
  • OFFLINE
  •  
  • Local time:01:45 PM

Posted 01 July 2010 - 01:38 PM

Thanks for the suggestion Chuck. THe default gateway is not the switch, however. The default gateway is the router. Switches are layer 2 devices -- the IP address is ONLY for management purposes, hence why it isn't ever cropping up in ARP tables, nothing looks for it. Traffic doesn't consider the switch to be a stop (hence why tracert wont show it).


I think it usually the same as your default gateway address.

From a cmd prompt type -> ipconfig <enter>

From a web browser enter the ip address of your Default Gateway.



#4 Retirednow

Retirednow

  • Members
  • 121 posts
  • OFFLINE
  •  
  • Local time:10:45 AM

Posted 02 July 2010 - 01:53 AM

Go here for more info:

http://www.cisco.com/en/US/products/ps6545/

And here for a sample config:

http://www.cisco.com/en/US/products/ps6545...0806da6c9.shtml

#5 Lisa Junior

Lisa Junior

  • Members
  • 4 posts
  • OFFLINE
  •  
  • Local time:12:45 PM

Posted 07 July 2010 - 02:57 AM

Hi, I think in this case, you just need a MAC scanner, which may be very helpufl. Install it on your computer and start scanning, you can get a list.

#6 kennzsniper

kennzsniper

  • Members
  • 142 posts
  • OFFLINE
  •  
  • Gender:Male
  • Local time:01:45 AM

Posted 07 July 2010 - 04:20 PM

RARP would be your route here. Lisa suggestion is quite good. You need to try it to acquire the IP address of the manageable switch.
Hardware tech when I was in college.
1st job was a network support for SOHO
2nd job was lappy tech
3rd Job way out of my league but its nice...




0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users