1. A method for providing isolated virtual image communication in a virtual computing environment, the method executed by one or more processors configured to perform a plurality of operations comprising: activating a guest virtual machine provided in a virtual computing environment; isolating the guest virtual machine within a virtual network in the virtual computing environment such that the guest virtual machine is unreachable from outside the virtual network; formulating, on the guest virtual machine, a service request addressed to a predetermined address; attempting to send the service request to the predetermined address, whereupon the service request is transmitted to a resource shared with a security appliance machine in the virtual computing environment, wherein the resource is not located at the predetermined address; forwarding the service request from the resource to the security appliance machine; formulating a reply to the service request at the security appliance machine; transmitting the reply from the security appliance machine to the resource; and transmitting the reply from the network filter to the guest virtual machine.