Support for Portal authentication

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Portal authentication is also called web authentication. Depending on the network layer where Portal authentication is performed, Portal authentication falls into Layer 2 and Layer 3 authentication.
- Layer 2 Portal authentication: No Layer 3 forwarding device is deployed between the authentication client and AR.
- Layer 3 Portal authentication: A Layer 3 forwarding device is deployed between the authentication client and AR.
The support for Portal authentication is as follows:
- In V200R003C00 and later versions, all AR models support Layer 2 and Layer 3 Portal authentication.
- In versions earlier than V200R03C00, all AR models support only Layer 2 Portal authentication.

Other related questions:
Support for Portal authentication
Portal authentication is also called web authentication. Depending on the network layer where Portal authentication is performed, Portal authentication falls into Layer 2 and Layer 3 authentication. - Layer 2 Portal authentication: No Layer 3 forwarding device is deployed between the authentication client and AR. - Layer 3 Portal authentication: A Layer 3 forwarding device is deployed between the authentication client and AR. The support for Portal authentication is as follows: - In V200R003C00 and later versions, all AR models support Layer 2 and Layer 3 Portal authentication. - In versions earlier than V200R03C00, all AR models support only Layer 2 Portal authentication.

S series switches' support for Portal authentication
Portal authentication is also called web authentication. For S series switches (except the S1700), Portal authentication can be classified into built-in Portal authentication and external Portal authentication. S series switches' support for external Portal authentication is as follows: - In V100R006: Switches except the S2700SI, S2710SI, S2700EI, S2752EI, S5700LI, and S5700S-LI support external Portal authentication. - In V200R001: Switches except the S5700LI and S5700S-LI support external Portal authentication. - In V200R002: Switches except the S5700LI and S5700S-LI support external Portal authentication. - In V200R003: Switches except the S2750EI, S5700LI, and S5700S-LI support external Portal authentication. - In V200R005 and later versions: All switch models support external Portal authentication. In versions earlier than V200R007C00, the S2720EI, S2750EI, S5700-10P-LI-AC, and S5700-10P-PWR-LI-AC support built-in Portal authentication only. In V200R007C00 and later versions, the S2720EI, S2750EI, S5700-10P-LI-AC, and S5700-10P-PWR-LI-AC that have Layer 3 hardware forwarding of IPv4 packets enabled support external Portal authentication. Only S series fixed switches support built-in Portal authentication.

Portal authentication associated with RADIUS fails on the AR
When Portal authentication is configured on the AR, you need to check whether the interface card supports NAC if an interface on the interface card is connected to authentication users. Otherwise, Portal authentication fails. Currently, the 4GE-2S, 4ES2G-S, 4ES2GP-S, and 9ES2 cards do not support the NAC function.

Is traffic detection supported in Portal authentication
Traffic detection is supported only in external Portal authentication.

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