Samsung SRD-480D User Manual page 26

connecting with other device
Connection using DDNS
Change the interval to more than 1 minute and enter the DDNS server IP and the user ID that you registered.
• To prevent damage to the DVR, you must connect the Ethernet cable before applying power.
• Insert the Ethernet cable to the end for secure connection.
• Turn on the DVR and check if you have made connection correctly.
M 
Refer to "DDNS Setting". (Page 44)
26_ connecting with other device