3Com WX3000 operation manual # Enable Dhcp snooping on Switch a

Figure 1-4ARP attack detection configuration

GE1/0/1

GE1/0/2

DHCP Server

Switch A

DHCP Snooping

GE1/0/3

Client A Client B

Configuration procedure

# Enable DHCP snooping on Switch A.

<SwitchA> system-view

[SwitchA] dhcp-snooping

# Specify GigabitEthernet 1/0/1 as the DHCP snooping trusted port and the ARP trusted port.

[SwitchA] interface gigabitethernet 1/0/1 [SwitchA-GigabitEthernet1/0/1] dhcp-snooping trust

[SwitchA-GigabitEthernet1/0/1] arp detection trust

[SwitchA-GigabitEthernet1/0/1] quit

# Enable ARP attack detection on all ports in VLAN 1.

[SwitchA] vlan 1

[SwitchA-vlan1] arp detection enable

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