Applying A Dhcp Address Pool To A Vpn Instance - HPE FlexNetwork MSR Series Comware 7 Layer 3 - Ip Services Configuration Manuals

Figure 23 Network diagram
Host A
Host B
Host C
The subnet advertising on the master device takes effect if the DHCP address pool is bound to a
VSRP instance. If the address pool is applied to a VPN instance, the VPN instance must exist.
To configure the subnet advertisement feature:
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

The following matrix shows the feature and hardware compatibility:
Hardware
MSR954(JH296A/JH297A/JH298A/JH299A/JH373A)
MSR958(JH300A/JH301A)
MSR1002-4/1003-8S
MSR2003
MSR2004-24/2004-48
MSR3012/3024/3044/3064
MSR4060/4080
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.
GE1/0/1
GE1/0/1
Layer 2 switch
Command
system-view
dhcp server ip-pool pool-name
network network-address
[ mask-length | mask mask ]
export-route [ secondary ]
Router A
DHCP server
BRAS
GE1/0/2
2.2.2.2/24
GE1/0/2
2.2.2.3/24
Router B
DHCP server
BRAS
DHCP address pool VPN application
compatibility
No
No
Yes
Yes
Yes
Yes
Yes
59
RADIUS server
IP network
Upstream traffic
Downstream traffic
Remarks
N/A
By default, no DHCP address
pool exists.
By default, the subnets
assigned to DHCP clients are
not advertised.