text only
Welcome to the home of computing at SUNY Oneonta - <%= Date() %> | <%= Time() %>

resnet training schedule | builiding by building move-in breakdown | training home page | suny oneonta home page
Autoregistration Scenarios - What the various IP addresses mean after Autoreg is done

Successfully installing the adapter and autoregistering the student does not mean that the student will be able to access the internet.  We have encountered machines that have completed successful NIC install and autoreg, but then lose thir connections once the computer has been turned back on.

The autoreg process involves a set of scripts running on the autoreg server which enter the student's info (including the hardware address) into an Access database, and then send the switch in the building the signal to allow that student to access a part of the network that can use the internet, e-mail etc (the part of the network that has the 137.141 .... network address).  Some students have not been able to escape from the part of the network that places them on the autoreg page (the 192.168 .... part of the network).  Some students lose their connection altogether.

This training provides you with the means to identify what is happening based on the student's IP after autoreg, and how to handle the situation.



What IP address is the computer getting?
 

169 or 0.0.0.0

192: autoreg finishes, but cannot access the network (remains 192)

192: cannot get to the autoreg page

Other possible problems

Checking the IP address in different systems


 
The following simulations depict the various ip scenarios you will face:
Simulations require Flash Player 6. Clicking the link will open a new browser window.

9x/ME IP verification | XP/2000 IP Verification in the Desktop | XP IP Verification in the Command Prompt

 




Scenario 1: IP address starting with 169, or 0 means no connection.  Test the connection as follows:

a. Preliminary Physical Check
top

- Look at the adapter on the computer.  Is there a light where the cable is connected?
- If no, there may be a port problem, a cable problem, or a computer/adapter problem.
- Use a known good ethernet cable.  Is there a light now?  If yes, confirm the connection by checking the IP address. 
- If the IP is good, the student needs to get a new cable.  Recommend that they purchase the cables sold in Netzer for 10 dollars.
- If there is still no light, there may be a port problem or computer/adapter problem.  It is now time to test the laptop.


b. Use the Laptop
top

- Plug the ethernet cable into the KNOWN GOOD laptop ethernet card.
- Turn on the computer.  Is there a light on the dongle?  If no light appears by the time the computer has booted, you have no connection.
- If there is a light, a signal is coming through.  To confirm that the computer can log on, check the IP address.

- If you cannot log on with the known good laptop, there is a server side or port problem.  Call for network support.  Provide the adapter/hardware address, and port number. 
- If you can log on with the laptop (ie when you released and renewed, the IP address changed to 137.141…), there is a hardware problem with the computer.  

 

Scenario 2: 192 IP address.  Complete autoreg.  Upon reboot, computer will not release 192 IP.
top

-  This means the server has not “flipped” the computer over to the V-LAN.  This requires network assistance. 
-  Provide the adapter/hardware address, and port number.

 

Scenario 3: Turn on computer for the first time.  Go to a URL.  Expect autoreg page to come up, but nothing occurs
top

-  In the URL field in the browser, type http://autoreg.oneonta.edu (no www)   or….
-  Type http://192.168.1.3
If there still is no page, check the IP address as per the instructions on page 1.  If the IP address is still 192, call the helpdesk or myself. 
-  Provide the hardware address and port number.  If it changes to 169…, perform the troubleshooting procedures in Scenario 1.

  

Other Possible Problems
top

- The user may receive the message “….failed to register with network administrator” after submitting autoreg information. 
- Any message of this type should be brought to our attention. 
- This is a script error on the server side.

- The user may receive a message referring to DSN error after submitting autoreg information. 
- Any message of this type should be brought to our attention. 
- This is a script error on the server side.


 

Checking the IP address
 

1.  Windows 95/98/ME
top

- Start
- Run
- Type WINIPCFG
-
At the IP configuration window, choose the Ethernet adapter.
- Note the IP address.
- Click Release, then Renew.
- Note the IP address again.
 

2.  Windows 2000
top

- Go to the command prompt (go to Start, Run, type CMD).
- At the prompt, type ipconfig /all
-
Note the IP address.
- At the next prompt, type ipconfig /release.  Wait for the response.
- After the response, type ipconfig /renew.
- Note the results.

3.  Windows XP
top

- You may check the IP address as per the procedure for Win 200 above.
- You may also check the IP without going to the command prompt.   Right click on My Network Places and choose "Properties".
- Right click on the connection in question, and click on "Status".
- Click on the "Support" tab.  You will get the IP address here.
- To perform the release/renew function, click the "repair" button.
- Click here for details on verifying the IP address in the Windows XP desktop.

There have been times that performing the GUI IP check/repair has not restored the connection, but performing the command line release/renew has done the trick.  We do not know why this is so.  If you want to be sure you have successfully released and renewed the IP address, do it in the command prompt.
 

4.  Macintosh

-  Go to Apple Icon in the upper left corner of the screen
-  Go to Apple System Profiler
-  Under the System Pofile tab, scroll down to TCP/IP.
-  Note the IP address.

 

These steps will also give you the hardware address of the adapter.  Ron or Lesley will need that information to perform the network intervention.  In Win 95/98/ME/2000, it is called “Adapter address”.  In Macintosh, it is called “Hardware Address”.  In addition, provide the port number.

 

top

 


Home - Documentation - Labs - ResNet - Software - Virus - Employment - Contact Us

Author of this Page: 
Last Updated: Thursday, July 24, 2003 2:12 PM


Link to Oneonta.edu