H3C S5500-SI Series, Operation Manual

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1-9
Figure 1-1 Network diagram for ARP detection configuration
Configuration procedure
1) Add all the ports on Switch B to VLAN 10, and configure the IP address of VLAN-interface 10 on
Switch A. (Omitted)
2) Configure Switch A as a DHCP server
# Configure DHCP address pool 0.
<SwitchA> system-view
[SwitchA] dhcp enable
[SwitchA] dhcp server ip-pool 0
[SwitchA-dhcp-pool-0] network 10.1.1.0 mask 255.255.255.0
3) Configure Host A as DHCP client, and Host B as user respectively. (Omitted)
4) Configure Switch B
# Enable DHCP snooping.
<SwitchB> system-view
[SwitchB] dhcp-snooping
[SwitchB] interface gigabitethernet 1/0/1
[SwitchB-gigabitethernet 1/0/1] dhcp-snooping trust
[SwitchB-gigabitethernet 1/0/1] quit
# Enable ARP detection for VLAN 10.
[SwitchB] vlan 10
[SwitchB-vlan10] arp detection enable
# Configure the upstream port as a trusted port and the downstream ports as untrusted ports (a port is
an untrusted port by default).
[SwitchB-vlan10] interface GigabitEthernet 1/0/1
[SwitchB-GigabitEthernet1/0/1] arp detection trust
[SwitchB-GigabitEthernet1/0/1] quit
# Configure a static IP Source Guard binding entry on interface GigabitEthernet1/0/3.
[SwitchB] interface GigabitEthernet1/0/3
[SwitchB-GigabitEthernet1/0/3] user-bind ip-address 10.1.1.6 mac-address 0001-0203-0607
vlan 10