3Com 4200G 24-Port - Configuring Dynamic VLAN Assignment

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for authentication, it also does so for authorization and accounting, even if authorization and
accounting fail.
Configuring Dynamic VLAN Assignment
The dynamic VLAN assignment feature enables a switch to dynamically add the switch ports of
successfully authenticated users to different VLANs according to the attributes assigned by the
RADIUS server, so as to control the network resources that different users can access.
Currently, the switch supports the following two types of assigned VLAN IDs: integer and string.
z Integer: If the RADIUS authentication server assigns integer type of VLAN IDs, you can set the
VLAN assignment mode to integer on the switch (this is also the default mode on the switch). Then,
upon receiving an integer ID assigned by the RADIUS authentication server, the switch adds the
port to the VLAN whose VLAN ID is equal to the assigned integer ID. If no such a VLAN exists, the
switch first creates a VLAN with the assigned ID, and then adds the port to the newly created
VLAN.
z String: If the RADIUS authentication server assigns string type of VLAN IDs, you can set the VLAN
assignment mode to string on the switch. Then, upon receiving a string ID assigned by the RADIUS
authentication server, the switch compares the ID with existing VLAN names on the switch. If it
finds a match, it adds the port to the corresponding VLAN. Otherwise, the VLAN assignment fails
and the user fails the authentication.
In actual applications, to use this feature together with Guest VLAN, you should better set port control to
port-based mode. For more information, refer to Basic 802.1x Configuration of 802.1x and System
Guard Operation.
Follow these steps to configure dynamic VLAN assignment:
To do… Use the command… Remarks
Enter system view
system-view
—
Create an ISP domain and
enter its view
domain isp-name
—
Set the VLAN assignment
mode
vlan-assignment-mode
{ integer | string }
Optional
By default, the VLAN assignment
mode is integer.
Create a VLAN and enter its
view
vlan vlan-id
—
Set a VLAN name for VLAN
assignment
name string
This operation is required if the
VLAN assignment mode is set to
string.