title: After login to captive portal,user can access router page and also ssh to router in openwrt
body: <p>I am having TP-Link WR841Nv11 router and I upgrade it to openwrt for using captive portal. I am using coova-chilli for captive portal. I setup router with 2 ssid's one is for private use and other it will ask to login through captive portal for external users. </p>
  
  <p>Everything is working fine, but the issue is after login through captive portal user can access the routers webpage and also able to ssh. I want to stop users to access router page and ssh as well.</p>