Hi,
I hope your PROD and DEV are using different subnets. In such a scenario, a machine part of PROD or DEV to access machines on other network you need to
1 Configure routing between two network
or
2. For machines which needs to have access to both network add multiple NICs and make it a multihomed machine.
In 1st case all machines in both network will be able to access each other.
in 2nd case only the machine having NICs places on both network will be able to access both networks. Machines which are not multihomed (in both network) will be able to access this particular machine but Not other machine on other network.
So if you make your connection server part of both network by adding multiple NICs; until unless you configure that host as a router no communication will happen from the DC running on DEV to PROD.
Regards
Noble