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Configuring layer 3 portal authentication, Network requirements – H3C Technologies H3C S7500E Series Switches User Manual

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8-21

# Configure 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 will be used for the user.

[Switch] domain default enable dm1

3) Configure portal authentication

# Configure the portal server as follows:

z

Name: newpt

z

IP address: 192.168.0.111

z

Key: portal

z

Port number: 50100

z

URL: http://192.168.0.111:8080/portal.

[Switch] portal server newpt ip 192.168.0.111 key portal port 50100 url

http://192.168.0.111:8080/portal

# Configure the switch as a DHCP relay agent, and enable the IP address match 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 Layer 3 Portal Authentication

Network requirements

As shown in

Figure 8-11

:

z

Switch A is configured for Layer 3 portal authentication. Before passing portal

authentication, Host can access only the portal server. After passing portal authentication,

it can access Internet resources.

z

The host accesses Switch A through Switch B

z

A RADIUS server serves as the authentication/accounting server.