About this task
You can add, modify, and delete OS objects. Extreme Networks devices can reassign
users to different user profiles based on several characteristics of their clients.
The operating system of a client is one way to categorize a device (the other two
are MAC address or OUI and device domain name).
To modify an existing OS object, select the edit icon and make your changes. To
delete OS objects, select the check box and then select the delete icon.
Use these steps to configure a new DHCP or HTTP OS object:
-
Select the add icon.
-
Enter a name for the object.
-
Enter a description for the object.
Although optional, descriptions can be helpful when you are troubleshooting
your network.
-
Select either DHCP Option or HTTP
Agent.
-
For either choice, select the add icon above the table.
-
Select an OS type from the drop-down menu.
If you do not see the OS you need, you can enter a new one in the field. For
DHCP Option, if you select a default OS types, the
Parameter Request List field is automatically filled in with the default DHCP
option 55 string. If you add a new OS type, you can then enter your own
parameter request list, which is a number string, separated by commas, that
determines the order by which the DHCP client requests specific parameter
information from the DHCP server. An example string to detect Windows 7 is:
1,15, 3, 6, 44, 46, 47, 31, 33, 121, 249, 43.
If you selected
HTTP Agent, enter a
description.
Note
Because devices use HTTP snooping to learn clients'
operating systems, the OS version string that you enter must match the
version that appears in the user-agent field in HTTP request headers. Lists
of user-agent strings for most OS versions are available
online.
-
Select Add.
