3com S7906E インストール手順

 

1-8 

Figure 1-1 Network diagram for ARP detection configuration 

 

 

 

1)  Add all the ports on Switch B to VLAN 10, and configure the IP address of VLAN-interface 10 on 

Switch A (the configuration procedure is 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 (the configuration procedure is 

omitted) 

4)  Configure Switch B 

# Enable DHCP snooping. 

<SwitchB> system-view 

[SwitchB] dhcp-snooping 

[SwitchB] interface gigabitethernet 2/0/3 

[SwitchB-gigabitethernet2/0/3] dhcp-snooping trust 

[SwitchB-gigabitethernet2/0/3] 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 2/0/3 

[SwitchB-gigabitethernet2/0/3] arp detection trust 

[SwitchB-gigabitethernet2/0/3] quit 

# Configure a static IP Source Guard binding entry on interface gigabitethernet 2/0/2. 

[SwitchB] interface gigabitethernet 2/0/2