Comtech EF Data CMR-6000 Manual - Manual (Page 74)

Digicast Media Router S2 Receiver CMR-6000 Revision 1
Device Management via User Interfaces MN-CMR6000-IOM
4-44
4.4.4.2 Port Number Configuration
In addition to the features illustrated, one additional feature is available, for security reasons, via the serial
interface only. Modifying the port numbers prevents attacks on “well known” ports by devices known as
port scanners. This feature is configuration of the TCP Port number for Telnet and HTTP protocols.
Option <M> allows the operator to modify the standard port numbers for Telnet (23) and HTTP (80) to
prevent unauthorized access to the device. Care should be taken not to use a reserved standard port
number.