Media Server Quick Start Guide
23
Caution To stop untrusted DMM appliances from being 
able to seize control of your DMPs, you must 
configure your network firewall to restrict which 
devices you will permit to send inbound traffic to 
your DMP over TCP port 7777. If you do not 
know how to work with access control lists, see the 
manufacturer documentation for your firewall.
Step 1 Specify in DMPDM which one DMM appliance 
to trust.
a. Select Settings > Centralized Management.
b. In the DMM-DSM Server Timeout (in seconds) field, 
enter the maximum number of seconds that your 
DMP should wait for a response from the trusted 
DMM appliance. (This is the appliance that serves 
DMM-DSM.)
c. In the DMM Appliance IP Address field, enter the 
routable IP address or DNS-resolvable hostname of 
the trustworthy DMM appliance. 
The DMM Appliance IP Address field might 
already be populated with the correct IP address 
for your DMM appliance if you used DMM-DSM 
to autodiscover your new DMP.










