RCSP Study Guide - Interface Naming Conventions
Interface Naming Conventions
The interface names for the bypass cards are a combination of the slot number and the port pairs
_ , _ ).
For example, if a four-port bypass card is located in slot 0 of your appliance, the interface names are: lan0_0, wan0_0, lan0_1, and wan0_1 respectively.
Alternatively, if the bypass card is located in slot 1 of your appliance, the interface names are: lan1_0, wan1_0, lan1_1, and wan1_1 respectively.