The BMC web application is available via TLS-secured (https) access either directly through port 443 or indirectly through port 80 to 443. ACL rules are not applicable to prevent unsecured (http) access. A sample X.509 certificate which is a copy of the BMC, and EMA certificates are shipped along with the SBC shipment. The size of this certificate is 2,048 bits.
Certificate with RSA keys up to 4,096 bits are supported. However, Ribbon recommends using 2,048 bit certificates.
The BMC uses a separate certificate store, which is independent from the SBC application certificate store. The SBC application certificate store that is also used for SIP/TLS/EMA. Load private keys and certificates (both server and CA certs) separately for the BMC and for the SBC application.
Enter the following URL in the browser to access the SBC BMC GUI:
https://<BMC_IP_Address>
where BMC IP address is the IP address of the BMC GUI.
The BMC also provides the interface which uploads the self-signed certificate to replace the sample X.509 certificates.
The SBC is delivered with sample self-signed X-509 certificates. Please be aware that even though these sample certificates will allow you to use HTTPS to access the SBC from the BMC or EMA interfaces, using this protocol with the sample certificates is not a truly secure access method. If your organization requires a more secure access, refer to Generating PKI Certificates.
The SBC supports a maximum of 4,096 TLS certificates/CAs (both local and remote).
The SBC allows importing of a single certificate in a single file only. If a CA provides a .p12 or a .pfx certificate bundle with multiple CA certificates in it, extract the certificates from the bundle, store them in separate files, and import them separately.
Use the following procedure to upload self signed certificates using BMC:
Log on to the SBC BMC using the IP address configured in the previous section.
The SBC BMC main screen appears.
Click Configuration > SSL. The SSL Certification Configuration screen is displayed.
Click Browse from the Upload SSL tab, and then from the Open dialog, browse to and select the BMC certificate.
Perform the same to select the SSL key.
If you require the BMC to send a certificate chain of SSL certificates instead of its own server certificate only, you must import the intermediate CA and/or root CA certificates together with the SBC server certificate in one file. The file must contain all certificates in .pem format.
Click Upload to upload the new BMC certificate and the Privacy Key (if any).
Follow steps 4 through 6 to upload the Default Privacy Key. A pop up message appears stating that the HTTPs Service need to restart and seeking your permission to proceed.