mibs downloaded from:
https://customer.cradlepoint.com/s/article/NCOS-How-to-configure-SNMP#MIBs


manually changed:
-----------------

* CP-ETHERNET-MIB

portPseClass OBJECT-TYPE
    SYNTAX INTEGER   {
             CLASS-INVALID(-1),

-> changed CLASS_INVALID to CLASS-INVALID (underscores not allowed)




* CP-SYSTEM-MIB

IMPORTS definition was not accepted, changed it to something that does
get accepted

wanStatus & wanType were missing MAX-ACCESS & STATUS definitions, added
those
