I'm trying to get a MAC <=> IP mapping from a Cisco ACE. Unfortunately according to this table,  while it supports IP-MIB the ipNetToMediaTable and ipNetToPhysicalTable  subtrees are not supported. Is there any other way to get this  information, maybe with the CISCO-SLB... MIBS (in which I poked around  but failed to find anything)?
As our management application has no CLI access, I have to use an SNMP based solution. 
Basically, I'd like to have the output "show arp", but via SNMP.
Thanks!