Applying A Dhcp Address Pool To A Vpn Instance; Enabling Client Offline Detection On The Dhcp Server - HP FlexNetwork MSR2003 Configuration Manual

To configure the subnet advertisement function:
Step
1. Enter system view.
2. Create a DHCP address pool
and enter its view.
3. Advertise subnets assigned to
DHCP clients.

Applying a DHCP address pool to a VPN instance

If a DHCP address pool is applied to a VPN instance, the DHCP server assigns IP addresses in this
address pool to clients in the VPN instance. Addresses in this address pool will not be assigned to
clients on the public network.
The DHCP server can obtain the VPN instance to which a DHCP client belongs from the following
information:
•
The client's VPN information stored in authentication modules, such as IPoE.
•
The VPN information of the DHCP server's interface that receives DHCP packets from the
client.
The VPN information from authentication modules takes priority over the VPN information of the
receiving interface.
To apply a DHCP address pool to a VPN instance:
Step
1. Enter system view.
2. Create a DHCP address pool
and enter its view.
3. Apply the address pool to a
VPN instance.
Enabling client offline detection on the DHCP
server
The client offline detection feature reclaims an assigned IP address and deletes the binding entry
when the ARP entry for the IP address ages out. The feature does not function if an ARP entry is
manually deleted.
To enable client offline detection on the DHCP server:
Step
1. Enter system view.
2. Enter interface view.
3. Enable client offline detection.
Command
system-view
dhcp server ip-pool pool-name
network network-address
[ mask-length | mask mask ]
export-route [ secondary ]
Command
system-view
dhcp server ip-pool pool-name
vpn-instance vpn-instance-name
Command
system-view
interface interface-type
interface-number
dhcp client-detect
55
Remarks
N/A
By default, no DHCP address
pool exists.
By default, the subnets
assigned to DHCP clients are
not advertised.
Remarks
N/A
By default, no DHCP address
pool exists.
By default, no VPN instance is
applied to the address pool.
Remarks
N/A
N/A
By default, client offline detection is
disabled on the DHCP server.