R2511-HP MSR Router Series Security Configuration Guide(V5)

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The prerequisites for portal authentication configuration are as follows:
• The portal server and the RADIUS server have been installed and configured correctly. Local portal
authentication requires no independent portal server be installed.
• With re-DHCP authentication, the IP address check function of the DHCP relay agent is enabled on
the access device, and the DHCP server is installed and configured correctly.
• The portal client, access device, and servers can reach each other.
• With RADIUS authentication, usernames and passwords of the users are configured on the RADIUS
server, and the RADIUS client configurations are performed on the access device. For information
about RADIUS client configuration, see "Configuring AAA."
• To implement extended portal functions, install and configure IMC EAD, and make sure that the
ACLs configured on the access device correspond to those specified for the resources in the
quarantined area and for the restricted resources on the security policy server. For information
about security policy server configuration on the access device, see "Configuring AAA."
For installation and configuration about the security policy server, see IMC EAD Security Policy Help.
The ACL for resources in the quarantined area and that for restricted resources correspond to isolation
ACL and security ACL on the security policy server respectively.
You can modify the authorized ACLs on the access device. However, your changes take effect only for
portal users logging on after the modification.
For portal authentication to operate correctly, make sure the device name is no more than 16 characters.
Specifying the portal server
Specifying the local portal server for Layer 2 portal
authentication
The following matrix shows the feature and router compatibility:
Feature
MSR9
00
MSR9
3
X
MSR2
0-1
X
MSR2
0
MSR30 MSR50
MSR1
000
Specifying the listening IP
address of the local portal
server for Layer 2 portal
authentication
No No No No
Supported on
MIM-FSW modules,
MSR30-11E, and
MSR30-11F
No No
Layer 2 portal authentication uses the local portal server. Specify the IP address of a Layer 3 interface on
the device that is routable to the portal client as the listening IP address of the local portal server. HP
recommends using the IP address of a loopback interface rather than a physical Layer 3 interface,
because:
• The status of a loopback interface is stable. There will be no authentication page access failures
caused by interface failures.
• A loopback interface does not forward received packets to any network, avoiding impact on system
performance when there are many network access requests.
To specify the local portal server for Layer 2 portal authentication: