Enterprise specific MIB modules Cisco Cisco MIBs, including lists of MIBs supported in the latest versions of IOS. For the Cisco engineers another server exists. Enterasys Networks Enterasys / Cabletron MIBs. Fore Systems Fore MIBs. Juniper Juniper MIBs. Riverstone Networks Riverstone/ Cabletron MIBs.

The University of Buffalo is still running a server containing an extensive list of pointers to enterprise specific MIB modules. Note that this server has not been updated for many years.

Companies can register their private MIB modules in the global MIB tree by contacting the Internet Assigned Numbers Authority (IANA). A list of currently assigned enterprise subtrees is maintained by IANA. MIB module specifications are not collected on a central site so you usually have to contact your vendor to get access to the MIB definitions.