System -> Security -> RADIUS -> Server Configuration.
Step 1 : Fill-in RADIUS Server's IP Address, and then press submit button.
Step 2 : Check the box of Apply
Step 3 : Fill-in text string for Secret, and then press Submit
- Secret - Shared secret text string used for authenticating and encrypting all RADIUS communications between the device and the RADIUS server. This secret must match the RADIUS encryption. The name contain up to 64 characters. The secret key cannot include sixteen continuous star(*) characters.
- Apply : The Secret will only be applied if this box is checked. If the box is not checked, anything entered in the Secret field will have no affect and will not be retained. This field is only displayed if the user has READWRITE access.