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If portal roaming is disabled, to access external network resources from a Layer 2 port different from
the current access port in the VLAN, the user must do the following:
1.
Logs out from the current port.
2.
Re-authenticates on the new Layer 2 port.
Restrictions and guidelines
When you enable portal roaming, follow these restrictions and guidelines:
•
Portal roaming takes effect only on portal users logging in from VLAN interfaces. It does not
take effect on portal users logging in from common Layer 3 interface.
•
You cannot enable portal roaming when online portal users or preauthentication portal users
exist on the device.
Procedure
To enable portal roaming:
Step
1.
Enter system view.
2.
Enable portal roaming.
Configuring the portal fail-permit feature
Perform this task to configure the portal fail-permit feature on an interface. When the access device
detects that the portal authentication server or portal Web server is unreachable, it allows users on
the interface to have network access without portal authentication.
If you enable fail-permit for both a portal authentication server and a portal Web server on an
interface, the interface does the following:
•
Disables portal authentication when either server is unreachable.
•
Resumes portal authentication when both servers are reachable.
After portal authentication resumes, unauthenticated users must pass portal authentication to
access the network. Users who have passed portal authentication before the fail-permit event can
continue accessing the network.
To configure portal fail-permit on an interface:
Step
1.
Enter system view.
2.
Enter interface view.
3.
Enable portal fail-permit for a
portal authentication server.
4.
Enable portal fail-permit for a
portal Web server.
Command
system-view
portal roaming enable
Command
system-view
interface interface-type
interface-number
portal [ ipv6 ] fail-permit server
server-name
portal [ ipv6 ] apply web-server
server-name [ fail-permit ]
318
Remarks
N/A
By default, portal roaming is
disabled.
Remarks
N/A
N/A
By default, portal fail-permit is
disabled for a portal
authentication server.
By default, portal fail-permit is
disabled for a portal Web server.
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Troubleshooting
