406
[SwitchA-GigabitEthernet1/0/2] ip source binding ip-address 192.168.0.3 mac-address
0001-0203-0405
[SwitchA-GigabitEthernet1/0/2] quit
# Enable IPv4SG on GigabitEthernet 1/0/1.
[SwitchA] interface gigabitethernet 1/0/1
[SwitchA-GigabitEthernet1/0/1] ip verify source ip-address mac-address
# On GigabitEthernet 1/0/1, configure a static IPv4SG binding for Host A.
[SwitchA-GigabitEthernet1/0/1] ip source binding ip-address 192.168.0.1 mac-address
0001-0203-0406
[SwitchA-GigabitEthernet1/0/1] quit
2. Configure Switch B:
# Configure an IP address for each interface. (Details not shown.)
# Enable IPv4SG on GigabitEthernet 1/0/2.
<SwitchB> system-view
[SwitchB] interface gigabitethernet 1/0/2
[SwitchB-GigabitEthernet1/0/2] ip verify source ip-address mac-address
[SwitchB-GigabitEthernet1/0/2] quit
# Configure a static IPv4SG binding for Host A.
[SwitchB] ip source binding ip-address 192.168.0.1 mac-address 0001-0203-0406
# Enable IPv4SG on GigabitEthernet 1/0/1.
[SwitchB] interface gigabitethernet 1/0/1
[SwitchB-GigabitEthernet1/0/1] ip verify source ip-address mac-address
# On GigabitEthernet 1/0/1, configure a static IPv4SG binding for Host B.
[SwitchB-GigabitEthernet1/0/1] ip source binding mac-address 0001-0203-0407
[SwitchB-GigabitEthernet1/0/1] quit
Verifying the configuration
# Verify that the static IPv4SG bindings are configured successfully on Switch A.
<SwitchA> display ip source binding static
Total entries found: 2
IP Address MAC Address Interface VLAN Type
192.168.0.1 0001-0203-0405 GE1/0/2 N/A Static
192.168.0.3 0001-0203-0406 GE1/0/1 N/A Static
# Verify that the static IPv4SG bindings are configured successfully on Device B.
<SwitchB> display ip source binding static
Total entries found: 2
IP Address MAC Address Interface VLAN Type
192.168.0.1 0001-0203-0406 N/A N/A Static
N/A 0001-0203-0407 GE1/0/1 N/A Static
Dynamic IPv4SG using DHCP snooping configuration
example
Network requirements
As shown in Figure 118, the host (the DHCP client) obtains an IP address from the DHCP server.
Perform the following tasks:
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