FIG. 1C shows DSDN 100 of FIG. 1 with communication connections for guest device 181 after guest device 181 on subnetwork 180 is provisioned into DSDN 100. FIG. 1C also includes a symbolically represented switch 190, discussed further below. Because device 181 is a guest device it is provided limited access to DSDN 100 support devices and subnetworks. This is to protect DSDN 100 devices and subnetworks from potential infection that may be introduced by guest device 181. This also protects guest device 181 from any viruses or malicious software that may be on a DSDN 100 device, for example furnace 133.
In FIG. 1C, guest device 181 is provided access to the internet 190 and access to AV subnetwork 140. Guest device 181 is provided primary device 102 controlled access to subnetwork 140. Control by primary device 102 is symbolically represented by device 102 controlling switch 190. Switch 190 may be implemented as a physical switch, as software within router 106, or by another system or method that would be apparent to one skilled in the art after reading the present disclosure.
FIG. 2 shows two subnetworks, subnetworks 200 and 250, which are examples of subnetworks forming communication subnetworks, such as subnetwork 250, and isolation subnetworks, such as subnetwork 200.