I've just installed an 871 and want to be able to remotely manage it from a the internet. To maintain security I only want to access it from my office IP address.
Cisco 876 and Cisco 878 routers can use the ISDN S/T port for remote management. With an advanced enterprise (c870-adventerprisek9-mz) image, a Cisco 876 router can also use the ISDN S/T port for dial backup.
Network configurations used to provide remote management access and backup for the primary WAN line.The dial backup link goes through a customer premises equipment (CPE) splitter, a digital subscriber line access multiplexer (DSLAM), and a central office (CO) splitter before connecting to the ISDN switch. Dial backup link goes directly from the Cisco router to the ISDN switch
