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C
HAP T ER
This chapter describes how to configure which HTTP-based network services default to the
captive portal page when client makes an initial network connection.
19.1 Captive Portal Overview
A captive portal can intercept all network traffic, regardless of address or port, until the user
authenticates his or her connection, usually through a specifically designated login Web page.
19.1.1 Web Authentication Policy Commands
Use these commands to use a custom login page from an external web portal instead of the
default one built into the NXC. You can configure the look and feel of the web portal page.
It is recommended to have the external web server on the same subnet as the
login users.
Table 59 Web Authentication Policy Commands
COMMAND
[no] web-auth activate
web-auth authentication
auth_method
web-auth default-rule
authentication {required |
unnecessary} {no log | log
[alert]}
web-auth [no] exceptional-service
service_name
NXC CLI Reference Guide
Captive Portal
DESCRIPTION
Turns on the captive portal feature. This blocks all network traffic
until the client authenticates with the NXC through the external web
portal page. The no command turns off the external web portal
feature.
Sets the authentication method for captive portal.
Sets the default authentication policy the NXC uses on traffic not
matching any exceptional service or other authentication policy.
required: Users need to be authenticated. Users must manually
go to the NXC's login screen (the NXC does not redirect them to it).
unnecessary: Users do not need to be authenticated.
no log | log [alert]: Select whether to have the NXC
generate a log (log), log and alert (log alert) or not (no log) for
packets that match this default policy.
Lets users access a service without user authentication. The
command removes the specified service from the exception list.
service_name: the name of network service, such as AH or DNS.
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