Semi-automated L3 interface DNS records

Does anyone out there have any experience with a script, tool or appliance that would help manage the creation and maintenance of DNS records for Layer 3 interfaces on routers and switches? We'd like to move toward this practice to help with troubleshooting and IPAM, but it's not feasible to do it manually. At a minimum, I was mulling over the idea of writing a script that would poll a device via SNMP to obtain interface information, parse it, compare the results to DNS, then generate a report if it found a miss. It wouldn't be fully-automated, but it would be better than doing that portion of the work manually. Cleaning up dead entries would be another issue.