Interface Information
Open any device submap and you will see all its interfaces, both physical and logical. A right click brings up the usual configuration menus revealing port, slot, or IP address information. The bitmap inside the interface icon indicates the type of interface. For example, a bitmap bearing the letter IP means the interface has an IP address configured.
Not all interfaces have IP addresses. It’s not uncommon for a point-to-point interface between routers to be unnumbered. This saves a whole IP subnet, an important consideration in situations where subnets are in limited supply. Switch, bridge, and repeater interfaces don’t have IP addresses, but the device itself has a pseudo-interface configured with one. This interface ...
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