Installing Web Gateway You can install a McAfee® Web Gateway (Web Gateway) appliance on different platforms and configure different modes of network integration. You can also set up and administer multiple appliances as nodes in a Central Management cluster. Platform You can install an appliance on different platforms. Hardware-based appliance — On a physical hardware platform Virtual appliance — On a virtual machine Network integration In your network, an appliance can intercept, filter, and transmit web traffic in different modes. Explicit proxy mode — The clients that the appliance communicates with are aware of it. You must configure them “explicitly” to direct their traffic to the appliance. Transparent modes — The clients are not aware of the appliance. Transparent bridge — The appliance acts as an “invisible” bridge between its clients and the web. You need not configure the clients for this. Transparent router — The appliance routes traffic according to a routing table, which you need to fill out. Administration and updates You can administer an appliance and have updates distributed in different ways. Standalone — Administer the appliance separately and let it not receive updates from other appliances. Central Management — Set up the appliance as a node in a complex configuration, which is also known as a cluster. You can administer all nodes from the interface of any individual node, including the distribution of updates.