My company is changing identification criteria for residential internet users. We need to change the way the CNR reacts to this new ID and program a SCE (Service Content Engine. This is already done.
For example our CNR is configured to identify a custom DHCP option (254). Now we need to reprogram it so that if this option = NULL then look for DHCP option 82 and then read a serial number in order to pair it with a service scope.
I am a software professional with experience in network management , networking voip etc. I have worked with many of the Cisco NMS products including CNR. The work is not very clear from the description given . Once you give more details we can take it forward.