HP VPN Firewall Appliances Access Control Configuration Guide

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more than 255 characters, the user cannot be redirected to the page of the URL after passing portal
authentication.
To specify an autoredirection URL for authenticated portal users:
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Specify an autoredirection
URL for authenticated portal
users.
portal redirect-url url-string
[ wait-time period ]
By default, an authenticated user is
redirected to the URL the user typed in the
address bar before portal authentication.
The wait-time period option is effective
only on local portal authentication.
Configuring portal detection functions
Configuring online Layer 3 portal user detection
This feature is available only for the direct and re-DHCP portal authentication configured on a Layer 3
interface.
With online portal user detection enabled on an interface, the device periodically sends probe packets
(ARP requests) to the portal users on the interface to check whether the portal users are still online, to find
portal users who get offline without logging off.
• If the device receives a reply from a portal user before sending probe packets to the portal user for
the maximum number of times, it considers that the portal user is online and keeps sending probe
packets to the portal user.
• If the device receives no reply from a portal user after sending probe packets to the portal user for
the maximum number of times, it considers that the portal user is offline and stops sending probe
packets to the portal user and deletes the user.
To configure online Layer 3 portal user detection:
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Enter interface view.
interface interface-type
interface-number
N/A
3. Configure online Layer 3
portal user detection.
access-user detect type arp
retransmit number interval interval
Not configured by default.
NOTE:
A
djust the maximum number of transmission attempts and the interval of sendin
g
probe packets
according to the actual network conditions.