I want to configure external third-party portal authentication on the C2960 to implement web authentication login for end users. But I can't find the corresponding setup documentation, can anyone help me?

Cisco IOS XE Software, Version 16.11.01 Switch#show interfaces twentyFiveGigE 1/0/29TwentyFiveGigE1/0/29 is down, line protocol is down (notconnect)Hardware is Twenty Five Gigabit Ethernet, address is cc7f.76a4.34bc (bia cc7f.76a4.34bc)Description: T...