If the box is not connected to the internet i.e. closed network then it won't be possible to renew the appliance key using the solution outlined in:
https://knowledge.broadcom.com/external/article?articleId=168179
Closed network
- Select the Configuration > SSL > Appliance Certificates > Create CSR
Copy the certificate signing request and visit https://abrca.bluecoat.com/sign-manual/index.html
Follow the instructions there to obtain an appliance certificate. See print screen below.
- Once you have clicked on "Generate Certificate" it will create the signed certificate:
- It is not currently possible to import the signed certificate into the appliance-key keyring in the gui.
The import button is greyed out:
You can however import the signed certificate into the appliance-key keyring using the cli.
In order to do this you need to ssh or serial to the ProxySG and then login.
Then go into conf t mode and then ssl
ProxySG#(config ssl) inline certificate appliance-key eof
the signed certificate
eof