H3C S7500E Series Ethernet Switches Operation Manual

Operation Manual – IP Source Guard
H3C S7500E Series Ethernet Switches Chapter 1 IP Source Guard Configuration
1-7
0001-0203-0406 192.168.0.1 1 Ethernet2/0/1 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 Ethernet 2/0/1 has obtained.
<SwitchA> 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 Ethernet2/0/1
As you see, port Ethernet 2/0/1 has obtained the dynamic entries generated by DHCP
Snooping after it is configured with dynamic binding.
1.6 Troubleshooting
1.6.1 Failed to Configure Static Binding Entries and Dynamic binding
Function
I. Symptom
Configuring static binding entries and dynamic binding fails on a port.
II. Analysis
IP Source Guard is not supported on the port which has joined an aggregation group.
Neither static binding entries nor dynamic binding function can be configured on the
port which has joined an aggregation group.
III. Solution
Remove the port from the aggregation group.