HP FlexNetwork 10500 Series Security Configuration Manual page 186

Configure extended re-DHCP portal authentication. Before passing portal authentication, the host is
assigned a private IP address. After passing portal identity authentication, the host obtains a public
IP address and accepts security check. If the host fails the security check, it can access only subnet
192.168.0.0/24. After passing the security check, the host can access Internet resources.
Figure 58 Network diagram
Configuration prerequisites and guidelines
•
Configure IP addresses for the switch and servers as shown in
host, switch, and servers can reach each other.
•
Configure the RADIUS server correctly to provide authentication and accounting functions.
•
For re-DHCP portal authentication, configure a public address pool (20.20.20.0/24) and a
private address pool (10.0.0.0/24) on the DHCP server. (Details not shown.)
•
For re-DHCP portal authentication:
The switch must be configured as a DHCP relay agent.
The portal-enabled interface must be configured with a primary IP address (a public IP
address) and a secondary IP address (a private IP address).
For information about DHCP relay agent configuration, see Layer 3—IP Services Configuration
Guide.
•
Make sure the IP address of the portal device added on the portal server is the public IP
address (20.20.20.1) of the switch's interface connecting the host. The private IP address range
for the IP address group associated with the portal device is the private subnet 10.0.0.0/24
where the host resides. The public IP address range for the IP address group is the public
subnet 20.20.20.0/24.
Configuration procedure
Perform the following tasks on the switch.
1. Configure a RADIUS scheme:
# Create a RADIUS scheme named rs1 and enter its view.
<Switch> system-view
[Switch] radius scheme rs1
# Specify the primary authentication server and primary accounting server, and configure the
keys for communication with the servers.
[Switch-radius-rs1] primary authentication 192.168.0.113
[Switch-radius-rs1] primary accounting 192.168.0.113
[Switch-radius-rs1] key accounting simple radius
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Figure 58 and make sure the