Is the number of TCP connections limited in Portal authentication

6

No.

Other related questions:
How to configure the number of access users supported by Portal authentication on a WLAN device
To configure the number of access users supported by Portal authentication on a WLAN device, perform the following operations: 1. Run the system-view command to enter the system view. 2. Run the authentication-profile name authentication-profile-name command to enter the authentication profile view. 3. Run the authentication max-user max-user-number command to configure the maximum number of authenticated users allowed in a VAP profile. The maximum number of access users can also be configured in a service set or an AP profile. If the parameter is configured in both of them, the smaller value takes effect.

How to check the LDP TCP connections and determine whether TCP connections are normal
The port number for LDP-dedicated TCP connections is 646. Run the display tcp status command. All connections with port number of 646 are LDP TCP connections. In most cases, the server has a Listening port and one or more Established connections. The local port number is 646, and the remote port number is a randomly allocated five-digit numeral. The command output is displayed as follows: display tcp status TCPCB Tid/Soid Local Add:port Foreign Add:port VPNID State 0d3bda5c 32 /1 0.0.0.0:23 0.0.0.0:0 14849 Listening 0b6d91cc 23 /2 2.2.2.2:646 1.1.1.1:53585 0 Established

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.

Why does the TCP connection fail even if the server and client both initiate a TCP connection
LDP sessions are established based on TCP connections using MD5 authentication. The TCP connection cannot be established, if one end is configured with MD5 authentication while the other end is not, or the MD5 passwords on the two ends are different. If MD5 cipher text authentication is proprietary on other vendors' devices, Huawei devices cannot set up a TCP connection with these devices.

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