walled garden question

Hi

How do i add this into my walled garden.

http://example.changeip.net:808/user

I have tried a few combinations but still nothing ^/example./changeip./net$ path “user” and port 808

Any help please

Thanks

Any one able to help?

How about this? Or would that be too open?

*.changeip.net

gave up on this one…will attempt it again at a later stage and post results. Thanks for suggestion.