H3C Technologies H3C WX6000 Series Access Controllers - Manual (Page 291)

26-5
For detailed configuration of DHCP Server, refer to DHCP in H3C WX6103 Access Controller Switch
Interface Board Configuration Guide.
Network diagram
Figure 26-2 Network diagram for configuring dynamic binding
Configuration procedure
1) Configure AC
# Configure dynamic binding on port GigabitEthernet 0/0/1.
<AC> system-view
[AC] interface GigabitEthernet 0/0/1
[AC-GigabitEthernet0/0/1] ip check source ip-address mac-address
[AC-GigabitEthernet0/0/1] quit
# Enable DHCP snooping on Switch A.
[AC] dhcp-snooping
# Configure port GigabitEthernet 0/0/2 connected to the DHCP server as a trusted port.
[AC] interface GigabitEthernet0/0/2
[AC-GigabitEthernet0/0/2] dhcp-snooping trust
[AC-GigabitEthernet0/0/2] quit
2) Verify the configuration
# Display the dynamic binding entries that port GigabitEthernet 0/0/1 has obtained from DHCP
Snooping.
<AC> display ip check source
The following user address bindings have been configured:
MAC IP Vlan Port Status
0001-0203-0406 192.168.0.1 1 GigabitEthernet0/0/1 DHCP-SNP
-----------------1 binding entries queried, 1 listed------------------
# Display the dynamic entries of DHCP Snooping and check it is identical with the dynamic entries that
port GigabitEthernet 0/0/1 has obtained.
<AC> display dhcp-snooping
DHCP Snooping is enabled.
The client binding table for all untrusted ports.
Type : D--Dynamic , S--Static
Type IP Address MAC Address Lease VLAN Interface
==== =============== ============== ============ ==== =================
D 192.168.0.1 0001-0203-0406 86335 1 GigabitEthernet0/0/1
As you see, port GigabitEthernet 0/0/1 has obtained the dynamic entries generated by DHCP Snooping
after it is configured with dynamic binding function.