CANOGA PERKINS 9175 Configuration Guide User Manual
Page 241
CanogaOS Configuration Guide
36-4
36.2.2 Topology
Figure 36-2: DHCP Snooping
This figure is the networking topology for testing DHCP snooping functions. We need two
Linux boxes and one switch to construct the test bed.
Computer A is used as a DHCP server.
Computer B is used as a DHCP client.
Switch A is used as a DHCP Snooping box.
36.2.3 Configurations
Configure vlan
DUT#configure terminal
Enter the Configure mode.
DUT(config)#vlan database
Configure VLAN database.
DUT(config-vlan)#vlan 2
Create vlan 2.
DUT(config-vlan)#exit
Exit the Configure mode.
Configure interface eth-0-12
DUT(config)#interface eth-0-12
Enter the Interface Configure mode.
DUT(config-if)#switchport Make
sure the port is switch port.
DUT(config-if)#switchport access vlan 2
Add the port to vlan 2.
DUT(config-if)#dhcp snooping trust
Trust all dhcp packets from this port.
DUT(config-if)#no shutdown
Make sure the port is enabled.
DUT(config-if)#exit Exit
the
Interface Configure mode.
Configure interface eth-0-1
DUT(config)#interface eth-0-1
Enter the Interface Configure mode.
DUT(config-if)#switchport Make
sure the port is switch port.
DUT(config-if)#switchport access vlan 2
Add the port to vlan 2.
DUT(config-if)#no shutdown
Make sure the port is enabled.
DUT(config-if)#exit Exit
the
Interface Configure mode.
Configure DHCP snooping feature