H3C Technologies H3C Intelligent Management Center - Manual (Page 336)

318
{
Support Server Heartbeat—Select Yes or No to enable or disable server heartbeat for the portal
device. For more information, see " Configuring UAM as the portal server ."
{
Support User Heartbeat—Select Yes or No to enable or disable user heartbeat for the portal
device. For more information, see "
Configuring UAM as the portal server ."
{
Key—Enter a key, which is used for the portal device and UAM to authenticate each other. The
value must be the same as what is configured on the portal device in the CLI.
{
Confirm Key—Enter the same key as the value in the Key field.
{
Access Method—Select Directly Connected (if no Layer 3 devices exist between the portal device
and endpoint users), Layer 3 (if Layer 3 devices exist between the portal device and endpoint
users), or Reallocate IP (to enable IP address reallocation on the portal device). The value must
be the same as what is configured on the portal device.
IP address reallocation typically applies to LAN users, such as campus, community, and
company network users. The portal device allocates a private IP address to a LAN user for the
user to access LAN resources, and performs portal authentication if the user attempts to access
the external network. If the user passes authentication, the portal device re-allocates a public IP
address to the user.
{
DHCP Request Retransmit Delay—Enter the time that the portal server waits for a notification of
successful IP address acquisition. When a user passes portal authentication and obtains a
public IP address, it notifies the portal server of the successful IP address acquisition. The total
waiting time equals the product of the DHCP request retransmit delay by the DHCP request
retransmit times. This field appears only when the value of Access Method is Reallocate IP.
{
DHCP Request Retransmit Times—Enter the number of times that the user retries to obtain an IP
address. If a user that passed portal authentication fails to obtain a public IP address, it retries
to obtain an IP address. This field appears only when the value of Access Method is Reallocate
IP.
{
Device Description—Enter detailed information about a portal device for easy maintenance.
4. Click OK.
Modifying a portal device
1. Access the device list page.
2. Click the Modify icon for the portal device you want to modify.
3. Modify the parameters for the portal device.
The Device Name, Version, Access Method, and Service Group parameters cannot be modified.
For more information, see "
Adding a portal device ."
4. Click OK.
Deleting a portal device
Before you delete a portal device, log off all online users connected to the device. Otherwise, if the portal
device is disabled with or does not support the user heartbeat function, an online user becomes an
abnormal user and the following problems can arise:
• Depending on the maximum concurrent login users setting, users may be unable to log in if users on
the same accounts are still displayed online.
• If the accounting component is deployed, the abnormal user is still charged as long as it is shown
online.