Port Mappings?

I have a repeater that I don't have the manual for.
What in the world do I do now ???

Tablo Connect:
  Your router requires manual configuration.

Use its Setup Assistant to set up port mappings for the Tablo's TCP ports.
Your Tablo's Private IP Address is

  Public Port Private Port
xxxxx xxxx
xxxxx xx
xxxxx xxx 

If it’s just a repeater you shouldn’t need to configure anything on the repeater. Just configure the port forwarding on the main router.

But a bit of caution, the best thing to do for stability is to have the Tablo hard wired. Move the Tablo near the main router.