Maybe somebody can help me? Cannot redirect some ports to specific up (ports are 16881 and 26881), getting check that port is closed.
Here is the sample from configuration
https://pastebin.com/CnMH5FTE

Are sure it's NAT on your RB who's blocking? It could be your ISP as well ...

I was trying to check with tool one of them and saw it on Tourch screen.
I am just not sure is it router or actual device (Synology NAS) issue.

If you suspect Synology problem, test on the same LAN. If it doesn't work, then you found it.

I haven't read all of your export but make sure your firewall accepts the redirected traffic. I've seen many people think that a simple dst-nat is an implicit accept through the FW.

Cheers,


Sent from my cell phone. Sorry for the errors.

If you suspect Synology problem, test on the same LAN. If it doesn't work, then you found it.

Thank you, are you absolutely right! I determined with your proposal that it's my Synology fault, LAN did not pass port check. I was able to solve this issue with proper Docker ports configuration and careful reading of another service documentation.

Thank you again!

Cool. Glad to be of help.

Sent from my cell phone. Sorry for the errors.