User Guide
711
Configuring DHCP Filter
Configuration Examples
Global Status: Enable
Verify the DHCPv4 Filter configuration on ports:
Switch_A#show ip dhcp filter interface
Interface state MAC-Verify Limit-Rate Dec-rate LAG
--------- ------- ---------- ---------- -------- ---
Fa1/0/1 Enable Disable Disable Disable N/A
Fa1/0/2 Enable Disable Disable Disable N/A
Fa1/0/3 Enable Disable Disable Disable N/A
Fa1/0/4 Enable Disable Disable Disable N/A
...
Verify the legal DHCPv4 server configuration:
Switch_A#show ip dhcp filter server permit-entry
Server IP Client MAC Interface
---------------- ----------------- ---------
192.168.0.200 all Fa1/0/1
4.2 Example for DHCPv6 Filter
4.2.1 Network Requirements
As shown below, all the DHCPv6 clients get IP addresses from the legal DHCPv6 server,
and any other DHCPv6 server in the LAN is regarded as illegal. Now it is required that only
the legal DHCPv6 server is allowed to assign IP addresses to the clients.
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