H3C S6812 Series Command Reference Manual page 687

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When receiving DHCP requests from DHCP clients, the proxy forwards them to the DHCP
server.
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When receiving DHCP responses from the DHCP server, the proxy modifies the DHCP server's
IP address in these responses as its own IP address.
Examples
# Enable the DHCP relay agent on VLAN-interface 2.
<Sysname> system-view
[Sysname] interface vlan-interface 2
[Sysname-Vlan-interface2] dhcp select relay
Related commands
dhcp relay server-address
dhcp relay source-address
dhcp smart-relay enable
reset dhcp server ip-in-use
DHCP server commands
address range
Use address range to configure an IP address range in a DHCP address pool for dynamic
allocation.
Use undo address range to restore the default.
Syntax
address range start-ip-address end-ip-address
undo address range
Default
No IP address range exists.
Views
DHCP address pool view
Predefined user roles
network-admin
Parameters
start-ip-address: Specifies the start IP address.
end-ip-address: Specifies the end IP address.
Usage guidelines
If no IP address range is specified, all IP addresses in the subnet specified by the network command
in address pool view are assignable. If an IP address range is specified, only the IP addresses in the
IP address range are assignable.
After you use the address range command, you cannot use the network secondary command to
specify a secondary subnet in the address pool.
If you execute this command multiple times, the most recent configuration takes effect.
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