Several advanced functions require that the CloudBridge appliances at the two ends of the link establish a secure peer relationship with each other, setting up an SSL signaling tunnel (also called a signaling connection). These features are SSL compression, signed CIFS support, and encrypted MAPI support.
When secure peering is enabled, compression is automatically disabled for all partner appliances (and computers running the CloudBridge Plug-in) that have not established a secure peer relationship with the local appliance.
To establish a secure peer relationship, you have to generate security keys and certificates, and configure a securing signaling tunnel between the appliances. Before configuring the tunnel, order a crypto license from Citrix.