DI-604 router problem

i try to host a ftp server with Serv-U, i think i made some configuration mistakes since it doesn't work.

i openned the following ports on my router:
Action | Name | Source Destination | Protocol
Allow | ftp2 |WAN,* LAN,192.168.0.100 | TCP,50000-50100
Allow | ftp |WAN,* LAN,192.168.0.100 | TCP,20-21

i filled the PASV port range spaces with 50000-50049
the domain name and ip is 192.168.0.100

i checked "Allow passive mode data transfers, use ip" and wrote 192.168.0.100 as ip

i hope someone knows what i did wrong

Let me ask the ip address 192.168.0.100 is it a computers ip or the routers ip you should in real forward the open ports to and computer ip that is running the ftp server