BIG-IP DNS Reverse Lookup Forwarding for multiple large subnets

We have a need to forward both forward and reverse lookups to remote DNS servers based on query. For forward zones this is pretty easy, and is simple to configure via ZoneRunner in a "forwarding" type zone - but forwarding reverse lookup zones appears to be much more challenging. We are essentially wanting to forward multiple 10.X.0.0/16's off to the remote AD DNS server for reverse lookups but it looks like the ZoneRunner "forwarding" zone does not intercept and forward reverse lookup queries even if you use the X/16.10.in-addr.arpa format for zone name.

 

I found some stuff on using DNAME records to delegate reverse lookups, but if I create a master zone in ZoneRunner, the only available records in a reverse lookup zone are CNAMES, NS and PTR so I'm not sure that would be a workable solution without manually modifying named.conf.

 

Does anyone have a good, working configuration for handling the forwarding of large numbers of reverse lookups to multiple (unique) remote destinations?