What are you tunnelling to? In a proper captive portal, it's blocked. I'm not talking about just blocking DNS. Or just blocking know DNS services. A good capti

What are you tunnelling to? In a proper captive portal, it's blocked. I'm not talking about just blocking DNS. Or just blocking know DNS services. A good captive portal just denies everything save the web/dns traffic redirected to an internal server running on the portal. That is until you log in and get explicit allow rights. If your portal isn't doing this, if you can escape and actually connect to external IPs, it's not captive.