System information

Appendix A: Advanced Device Configuration 397
Address Configuration for Connected Devices
Virtual Network and Device Configuration for Example 3
To hide the real addresses of the devices from users according to the ongoing
example, the OnBoard administrator would need to do the following
configuration:
• Assign the device named “sp1” a virtual IP of 172.20.0.2.
• Assign the device named “sp2” a virtual IP of 172.20.0.3.
• Assign the device named “sp3” a virtual IP of 172.20.0.4.
• The device named “sp4” with IP 192.168.4.22 does not work with virtual
network (DNAT) addressing, so it cannot be contacted using a virtual IP
address. Therefore, the administrator does not assign “sp4” a virtual IP.
To make it possible to assign the virtual addresses shown in Figure A-14, the
OnBoard administrator needs to configure a virtual network with the
following values:
• Address: A virtual address from the desired virtual address range to assign
to the OnBoard, in this case: 172.20.0.1
• Netmask: 255.255.0.0
The following figure shows the desired values entered on the Web Manager
Network → Private subnet: Add Subnet screen.
Figure A-15:Example Values for Configuring Two Private Subnets With a
Virtual Network
Finally, the administrator also must configure the devices that support virtual
addressing with a virtual address from the 172.20.0.0 virtual network IP
range. For example, the following figure shows the virtual IP address
172.20.0.2 assigned to the device “sp1” on the Web Manager Config Devices
screen to implement the configuration shown in Figure A-14.