What Is Captive Portal Login in Android
These authentications can deter the use of the public internet for criminal activities. The servers using captive portal login mostly have firewall and anti-virus programs installed to protect the user’s computer from the Internet and from each other. It minimizes bandwidth hogging too; bandwidth hogging is when people repeatedly use the public network to download music, videos or larger files. Through programming, you can control the download speed, restrict the number of downloads in a single session, block websites used for downloading large files or limit the size of files that can be downloaded.
There are three states of clients who connect through a captive portal login: unknown, unauthenticated and authenticated. In the unknown state, the captive portal will not redirect HTTP traffic to switch. It will ask the switch if the user is authenticated or not. In the unauthenticated state, the captive portal redirects HTTP traffic to the switch. The client authenticates with the switch. After successful authentication, the client achieves the authentication state in which all the traffic generated by the client is passed on through the switch.