1-6default mask length is 8, these two IP addresses are on the same natural network. In this way,VLAN-interface 10 can learn the MAC address corresponding to the source IP address 10.11.11.1.Follow these steps to enable the support for ARP requests from a natural network:To do… Use the command… RemarksEnter system view system-view —Enable the support for ARPrequests from a natural network naturemask-arp enable RequiredDisabled by default.ARP Configuration ExampleNetwork requirementsAs shown in Figure 1-3, hosts are connected to Switch, which is connected to Router through interfaceGigabitEthernet2/0/1 belonging to VLAN 10. The IP address of Router is 192.168.1.1/24. The MACaddress of Router is 00e0-fc01-0000.To enhance communication security for Router and Switch, static ARP entries are configured onSwitch.Figure 1-3 Network diagram for configuring static ARP entriesConfiguration procedureConfigure Switch# Create VLAN 10. system-view[Switch] vlan 10[Switch-vlan10] quit# Add interface GigabitEthernet 2/0/1 to VLAN 10.[Switch] interface GigabitEthernet 2/0/1[Switch-GigabitEthernet2/0/1] port access vlan 10[Switch-GigabitEthernet2/0/1] quit# Create interface VLAN-interace 10 and configure its IP address.[Switch] interface vlan-interface 10
