Compatible Systems 5.4 manual IP Subinterface Dialog Box

42 Chapter 2 - IP Routing & Bridging

IP Subinterface Dialog Box

Add IP Subinterface Dialog Box

IP Subinterface Configuration Dialog Box

Subinterfaces are added to the edit area of a device by right-clicking on any configuration item for the device, then choosing Sub interface/Add. To delete

asub interface, right-click on the subinterface icon, then choose Subinter- face/Delete. These functions are also available in the Device menu.

Once you have created a subinterface, you may access the IP Subinterface Configuration Dialog Box by clicking on TCP/IP under the subinterface icon.

IP subinterfaces allow the device to service more than one IP address range on a single physical network segment.

Because a routed IP packet does not contain any information regarding which networks it has passed across, the device must associate all IP packets received from a physical segment with the primary interface connected to that segment. As a result of this, the only IP parameters which can be set for subinterfaces are the IP Address, IP Subnet Mask, and IP Broadcast Address.