- Select Service Tab, under that select Firewall.
- Select Virtual Server.
- Enter your preferred User Defined Service Name.(e.g. CCTV)
- Select Protocol.
- Select Any for Wan Interface.
- Enter WAN Port(DVR default Port or any port you want).
- Enter LAN Port(DVR default Port or any port you want).
- Enter DVR IP Address.
- Click Apply Changes.
- Click Save on the lower left side.
- Select Admin, Commit Changes then Reboot.