MSM7xx Controllers Configuration Guide v6.4.0

• Logout HTML user on discovery request: When enabled, the controller will log out a client
station if a DHCP discovery request is received from the client station while a DHCP
address lease is currently assigned.
This feature is useful when multiple users share the same client station. If a user forgets
to log out before turning off the client station, the next user will have to wait until the lease
expires before being able to log in.
• Listen for DHCP requests on: Select the port on which the controller will listen for DHCP
requests from client stations.
◦ LAN port (Access network on the MSM720): Listen for requests on the LAN port
(Access network on the MSM720).
◦ Client data tunnel: Enable this option when the client data tunnel feature is active on
one or more VSCs, and you want tunneled client stations to be able to receive an IP
address from the controllers DHCP server.
5. Select Save.
Assigning fixed DHCP leases
Use this feature to permanently reserve an IP addresses lease for a specific device. This ensures
that the device is always reachable at the same address on the network, but does not require a
static address to be set directly on the device itself. This table lists all permanently reserved
addresses. Up to 255 fixed leases can be defined.
To assign a specific IP address to a client station, specify the following and select Add:
• MAC address: MAC address of the client station in the format: nn:nn:nn:nn:nn:nn.
• IP address: IP address that will be assigned to the client station in the format: nnn.nnn.nnn.nnn.
• Unique identifier: A number that identifies the device. Must be unique to all DHCP clients on
the network. Generally set to the MAC address of the client station. This parameter is optional
unless MAC masquerading is being performed by the client station.
Assigning public IP addresses
This feature enables the integrated DHCP server on the controller to assign public IP addresses to
users. A user with a public IP address is visible on the protected network connected to the Internet
port, instead of being hidden by the controllers NAT feature. This makes it possible for external
devices to create connections with a computer on the internal network.
Public IP addresses are assigned by the integrated DHCP server using the addresses specified in
the Address pool. Whenever possible, this feature will assign the same public IP address to a user
each time they connect.
When you enable public IP address support in a subscription plan, an additional setting is available
called Reserve public IP address. When this option is enabled, the public IP assigned to a user is
reserved until their subscription plan expires. This means that the address is reserved, even if the
user is not logged in.
When a public IP address is assigned to a user:
• The user cannot access any VLANs, VPNs, or GRE tunnels configured on the controller.
• The user cannot establish more than one concurrent session.
Configuring DHCP services 47