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b. Add ISP domain dm1, and set the domain state to Active.
c. Set the access service to Portal.
d. Configure the ISP domain to use RADIUS scheme rs1 for authentication, authorization, and
accounting of portal users.
e. Click the Advanced settings icon on the ISP Domain page.
f. Specify dm1 as the default ISP domain. If a user enters the username without the ISP
domain name at login, the authentication and accounting methods of the default domain are
used for the user.
4. Configure the VLAN and the VLAN interface:
a. From the navigation tree, select Network > Links > VLAN.
b. Create VLAN 100.
c. Open the details page for VLAN 100.
d. Create VLAN-interface 100.
e. Configure the primary IP address as 20.20.20.1 and secondary IP address as 10.0.0.1 for
the VLAN interface.
5. Configure DHCP relay on the switch:
a. From the navigation tree, select Network > Service > DHCP.
b. Click Enable DHCP.
c. Create VLAN-interface 100 to operate in DHCP relay agent mode.
d. Configure the IP address of the DHCP server as 192.168.0.112.
e. Open the DHCP server advanced settings page and enable the Record DHCP relay client
information feature.
6. Configure authorized ARP on the switch:
a. From the navigation tree, select Network > IP > ARP.
b. Open the advanced settings page.
c. Open the ARP attack protection page.
d. Enable authorized ARP on VLAN-interface 100.
7. Configure portal authentication on the switch:
a. From the navigation tree, select Security > Acces
s Control > Portal.
b. Add a portal authentication server:
− Specify the server name as newpt.
− Specify the IP address as 192.168.0.111.
− Specify the shared key as portal.
− Set the server listening port to 50100.
c. Add a portal Web server:
− Specify the server name as newpt.
− Specify the URL.
The URL must be the same as the URL of the portal Web server used in the network.
This example uses http://192.168.0.111:8080/portal.
d. Add an interface policy:
− Select interface VLAN-interface 100.
− In the IPv4 configuration area, enable portal authentication and select the Redhcp
method.
− Select portal Web server newpt.
− Configure the BAS-IP address as 20.20.20.1.
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