To setup MIB Designer:
  1. Set the MIB Designer's MIB repository by choosing File/Set MIB Repository. Select (or create) an empty directory. Tip: Do not navigate into the directory, instead just select it in the parent directory. Otherwise the MIB repository path will not be set correctly!
  2. Import basic SMIv2 MIB modules like SNMPv2-SMI with the File/Compile MIBs menu by selecting the directory or ZIP file that includes these MIB files. Some SMIv2 MIB modules are shipped with MIB Designer and can be found in the mibs directory. Note: If you want to compile MIB modules published by the IETF, you will have to extract from the RFC text first (see Tools menu).
Now you are ready to create your own MIB module:
  1. Choose New from the File menu to create a new MIB module.
  2. Follow the three steps of the 'New MIB Wizard'.
  3. Import any TEXTUAL-CONVENTIONS, OBJECT-TYPE, OBJECT-IDENTITY, and OBJECT-IDENTIFIER definitions you want to use by choosing Edit/Imports... then selecting the source MIB module and the object definition(s) to import/use in your new MIB module.
  4. Add your object definitions to the MIB module by selecting the parent object in the MIB tree and then choosing Add from the context menu or Edit/Add... from the menu.
The complete documentation for MIB Designer can be found as PDF document in its installation directory and at http://www.mibdesigner.com.