You can Limiting Access to the web account / backup management web console by specifying a list of IP addresses allow to log in.

To limit access to the web interface, you may :

1. Log in to the account management console
2. Select a group for which you want to limit the access.
3. Click Settings > Security.
4. Select the Enable logon control check box.
5. To allow the IP addresses, specify the allow IP addresses.You can enter any of the following parameters, separated by a semicolon:
   • IP addresses. For example : 192.0.2.0
   • IP ranges. For example : 192.0.2.0 – 192.0.2.255
   • Subnets. For example : 192.0.2.0/24
6. Click Save.

This restriction is not apply to the members of the child groups.