Examples of command usage
Enable ARP Inspection and add the a static mapping to the 'list' list: MAC address:
00:60:70:AB:CC:CD, IP-address: 192.168.16.98. Assign the 'list' static ARP matching list to
VLAN 11:
console# configure
console(config)# ip arp inspection list create list
console(config-ARP-list)# ip 192.168.16.98 mac-address 0060.70AB.CCCD
console(config-ARP-list)# exit
console(config)# ip arp inspection list assign 11 list
Show the lists of static IP and MAC address mappings:
console# show ip arp inspection list
List name: servers
Assigned to VLANs: 11
IP ARP
----------- --------------------------
192.168.16.98 0060.70AB.CCCD
11.2 DHCP Relay features
The switches support DHCP Relay agent functions. DHCP Relay agent transfers DHCP packets from
the client to the server and back if the DHCP server and the client are located in different networks. Also,
DHCP Relay agent adds extra options to the client DHCP requests (e.g. Option 82).
DHCP Relay agent operating principle for the switch:
the switch receives DHCP requests from the client, forwards them to the server on behalf of the
client (leaving request options with parameters required by the client and adding its own options
according to the configuration). When the switch receives a response from the server, it sends it to the
client.
Global configuration mode commands
Command line prompt in the global configuration mode is as follows:
console(config)#