H3C Technologies H3C S12500 Series Switches - Manual (Page 69)

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Displaying and maintaining the DHCP relay agent
Execute display commands in any view and reset commands in user view.
Task Command
Display information about DHCP servers specified
on the DHCP relay agent interface. display dhcp relay server-address [ interface
interface-type interface-number ]
Display Option 82 configuration information on the
DHCP relay agent. display dhcp relay information [ interface interface-type
interface-number ]
Display relay entries on the DHCP relay agent.
display dhcp relay client-information [ interface
interface-type interface-number | ip ip-address
[ vpn-instance vpn-instance-name ] ]
Display packet statistics on the DHCP relay agent.
display dhcp relay statistics [ interface interface-type
interface-number ]
Clear relay entries on the DHCP relay agent.
reset dhcp relay client-information [ interface
interface-type interface-number | ip ip-address
[ vpn-instance vpn-instance-name ] ]
Clear packet statistics on the DHCP relay agent.
reset dhcp relay statistics [ interface interface-type
interface-number ]
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DHCP relay agent configuration examples
By default, Ethernet, VLAN, and aggregate interfaces are down. To configure such an interface, bring
the interface up by executing the undo shutdown command.
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DHCP relay agent configuration example
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Network requirements
As shown in
708H
Figure 22 , the DHCP relay agent forwards DHCP messages between DHCP clients and the
DHCP server.
The DHCP relay agent and server are on different subnets, so configure static or dynamic routing to make
them reachable to each other.
Perform the configuration on the DHCP server to guarantee the client-server communication. For DHCP
server configuration information, see "
709H
DHCP server configuration examples ."