H3C Technologies H3C WX3000E Series Wireless Switches - Manual (Page 61)

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To do… Use the command… Remarks
Display statistics information about
bindings of DHCP relay agents
display dhcp relay security statistics [ |
{ begin | exclude | include }
regular-expression ]
Available in any
view
Display information about the
refreshing interval for entries of
dynamic IP-to-MAC bindings
display dhcp relay security tracker [ |
{ begin | exclude | include }
regular-expression ]
Available in any
view
Display information about the
configuration of a specified or all DHCP
server groups
display dhcp relay server-group { group-id
| all } [ | { begin | exclude | include }
regular-expression ]
Available in any
view
Display packet statistics on relay agent
display dhcp relay statistics [ server-group
{ group-id | all } ] [ | { begin | exclude |
include } regular-expression ]
Available in any
view
Clear packet statistics from relay agent
reset dhcp relay statistics [ server-group
group-id ] Available in user
view
DHCP relay agent configuration examples
DHCP relay agent configuration example
Network requirements
As shown in Figure 21 , DHCP clients reside on network 10.10.1.0/24. The IP address of the DHCP server
is 10.1.1.1/24. Because the DHCP clients reside on a different network with the DHCP server, a DHCP
relay agent is deployed to forward messages between DHCP clients and the DHCP server.
VLAN-interface 1 on the DHCP relay agent (Switch A) connects to the network where DHCP clients reside.
The IP address of VLAN-interface 1 is 10.10.1.1/24 and the IP address of VLAN-interface 2 is
10.1.1.2/24.
Figure 21 Network diagram for DHCP relay agent
Configuration procedure
# Specify IP addresses for the interfaces (omitted).
# Enable DHCP.
<SwitchA> system-view
Switch B
DHCP server
Switch A
DHCP relay agent
DHCP client DHCP client
DHCP client DHCP client
Vlan-int2
10.1.1.2/24 Vlan-int1
10.10.1.1/24
Vlan-int2
10.1.1.1/24