Being behind several routers, I needed to rely only on Quickconnect from Synology.
Now I've managed to get ports forwarded to me from ISP, so I've got 21, 80, 5000, 5001 ports opened. They also gave me some IP address, probably it's external IP of whole their network.
Problem is, that Synology 120j doesn't allow me to set this up manualy (or maybe I don't know how) rather than forcing me to go trought wizard which keeps complaining about the routers not being in "bridge mode".
When I look on internet, there are several videos, but all of them use old Synology menu where is "Port forwarding" option located. Now I'm going via Control Panel > External Access > Router Configuration where I need to first set up router and than I can get to setting up the ports.
Thank you very much!!
31 Answer
so I've find out. Once you have ports opened (I've did in the end 80, 443, 5000 and 5001), you just need to create manualy configuration for a router ,which will not work, but it will let you to go to another step, where you can set up the ports you have opened
