Foscam Synology DS218play User Manual page 30

Use DDNS domain name and port to login
Click Multi-Device Settings. Choose The 2nd Device. Fill in the 2nd camera's name, DDNS domain name, port
number. Enter user name and password and then choose Add.
1----- The camera model: MJ or H264.
2----- The 2nd camera's name
3----- Fill in the 2nd camera's DDNS host not LAN IP
NOTE : The MJ series have the same HTTP Port NO. and Media Port NO.
4----- Enter the 2nd camera's user name and password
5----- Click Add button and to take effect
NOTE : Here the Host must be entered as the second camera's DDNS domain name, not its LAN IP.
Make sure each camera you need add
could login with DDNS name and port
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