What Is the Difference Between Portal Authentication and 802.1X Authentication

Hi Irshadhussain, 

Portal authentication and 802.1X authentication are different at the network side. Portal authentication is simple but has poor information security. 802.1X authentication is complex to install and configure but ensures high information security. The two authentication modes are used based on service types. 802.1X authentication is recommended for scenarios requiring high security. The combination of portal authentication and 802.1X authentication is used to meet requirements of different service on the existing networks. The following table shows the comparisons between portal authentication and 802.1X authentication.

I hope it helps!