HPE FlexNetwork MSR Series Comware 7 Layer 3 - Ip Services Configuration Guides

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Figure 23 Network diagram
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 Command Remarks
1. Enter system view.
system-view
N/A
2. Create a DHCP address pool
and enter its view.
dhcp server ip-pool
pool-name
By default, no DHCP address
pool exists.
3. Advertise subnets assigned to
DHCP clients.
network
network-address
[ mask-length |
mask
mask ]
export-route
[
secondary
]
By default, the subnets
assigned to DHCP clients are
not advertised.
Applying a DHCP address pool to a VPN instance
The following matrix shows the feature and hardware compatibility:
Hardware
DHCP address pool VPN application
compatibility
MSR954(JH296A/JH297A/JH298A/JH299A/JH373A) No
MSR958(JH300A/JH301A) No
MSR1002-4/1003-8S Yes
MSR2003 Yes
MSR2004-24/2004-48 Yes
MSR3012/3024/3044/3064 Yes
MSR4060/4080 Yes
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.
Host B
Host A
Host C
Upstream traffic
Downstream traffic
Router A
DHCP server
BRAS
GE1/0/1
GE1/0/2
2.2.2.2/24
GE1/0/1
GE1/0/2
2.2.2.3/24
Router B
DHCP server
BRAS
Layer 2 switch
IP network
RADIUS server

HPE FlexNetwork MSR Series Specifications

General

Brand	HPE
Model	FlexNetwork MSR Series
Category	Network Router
Language	English