160
# Specify that the ISP domain name should not be included in the username sent to the RADIUS
server.
[Switch-radius-rs1] user-name-format without-domain
[Switch-radius-rs1] quit
2. Configure an authentication domain:
# Create an ISP domain named dm1 and enter its view.
[Switch] domain dm1
# Configure AAA methods for the ISP domain.
[Switch-isp-dm1] authentication portal radius-scheme rs1
[Switch-isp-dm1] authorization portal radius-scheme rs1
[Switch-isp-dm1] accounting portal radius-scheme rs1
[Switch-isp-dm1] quit
# Configure domain dm1 as the default ISP domain for all users. Then, if a user enters the
username without the ISP domain at logon, the authentication and accounting methods of the
default domain are used for the user.
[Switch] domain default enable dm1
3. Configure portal authentication:
# Configure the portal server as follows:
{ Name: newpt
{ IP address: 192.168.0.111
{ Key: portal in plain text
{ Port number: 50100
{ URL: http://192.168.0.111:8080/portal
[Switch] portal server newpt ip 192.168.0.111 key simple portal port 50100 url
http://192.168.0.111:8080/portal
# Configure the switch as a DHCP relay agent, and enable the IP address check function.
[Switch] dhcp enable
[Switch] dhcp relay server-group 0 ip 192.168.0.112
[Switch] interface vlan-interface 100
[Switch–Vlan-interface100] ip address 20.20.20.1 255.255.255.0
[Switch–Vlan-interface100] ip address 10.0.0.1 255.255.255.0 sub
[Switch-Vlan-interface100] dhcp select relay
[Switch-Vlan-interface100] dhcp relay server-select 0
[Switch-Vlan-interface100] dhcp relay address-check enable
# Enable re-DHCP portal authentication on the interface connecting the host.
[Switch–Vlan-interface100] portal server newpt method redhcp
[Switch–Vlan-interface100] quit
Configuring cross-subnet portal authentication
Network requirements
As shown in Figure 52:
• Switch A is configured for cross-subnet portal authentication. Before passing portal authentication,
the host can access only the portal server. After passing portal authentication, the host can access
Internet resources.