Configuring the ECC curve order

System Administrator Guide for VSP 5000 Series

Version

90-09-2x

Audience

anonymous

Part Number

MK-98RD9009-16

When using a certificate with a key type of ECDSA and a key length of secp521r1, use the following procedure to configure the ECC curve order from the management client.

SSL communication with SVP fails, and then the Tool Panel dialog box and HDvM - SN might not open if you do not configure the ECC curve order.

Note: The ECC curve order must be configured also for an OS in the SVP. Ask maintenance personnel to configure the setting in the SVP.

Open the Run dialog box (press Windows Key + R).
Type gpedit.msc, and then press Enter.
In the Local Group Policy Editor, navigate to Computer Configuration > Administrative Templates > Network > SSL Configuration Settings.
Double-click ECC Curve Order and open the ECC Curve Order window.
Select Enabled and add secP521r1 to ECC Curve Order in Options.
Example:
```
Curve25519
NistP256
NistP384
secP521r1
```
Click OK and close the Setting window.
Close the Local Group Policy Editor, and then restart the management client.
Ask maintenance personnel to configure the ECC curve order in the SVP.