Can I access the modem if it is connected through a router?

Question

Network administration

You can access the modem (zuxel 600 series) if it is connected through a router (cisco asa 5505) without disconnecting the modem from the router, that is, with all this connected business .... the default address of the modem is 192.168.1.1, it turns out to be configured on the router as external interface, and the internal interface is 10.16.92.1....