SNMP "bridging"/proxy?

[Nathan Anderson <nathana () fsr com>]

'lo all,

Is anybody out there aware of a piece of software that can take data from an arbitrary source and then present it, 
using a MIB or set of OIDs of your choosing, as an SNMP-interrogatable device?

We have some CPE that supports SNMP, but considers it to be a mutually-exclusive "remote management" protocol such that 
if you use another supported method for deployment and provisioning (e.g., TR-069), you cannot have both that AND SNMP 
enabled simultaneously.  It's one or the other.

We currently monitor and graph some device stats for these CPE with Cacti, but we want to be able to provision using a 
TR-069 ACS.  The ACS can collect some of the same data we are graphing right now, but cannot present it in a fashion 
that is nearly as useful as the way Cacti/RRDtool does (not to mention the staff is already used to navigating Cacti).  
We know what SQL database table the stats are being stored in by the ACS, though, so my thought was that there must be 
some way that we can have a host respond to SNMP gets and then have it turn around and collect the value to be returned 
from a database.  Basically, an ODBC -> SNMP proxy.  We'd then point Cacti at that IP instead of the individual CPEs.  
But I can't seem to find anything like this.

Thanks,

-- Nathan