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DES-7200 Configuration Guide Chapter 10 Dynamic ARP Inspection Configuration
10-6
10.5 Typical DAI
Configuration Example
10.5.1 Topological Diagram
Figure2 DHCP deployment environment
10.5.2 Application Requirements
As shown above, the IP address of user PC is automatic allocated by the DHCP
server. To ensure that users can access network normally, the following requirements
must be met:
1. User PC can only acquire IP address from the specified DHCP server, and no
additional DHCP server is allowed.
2. Only the IP address allocated by the valid DHCP server can access network,
and IP address cannot be configured at will.
10.5.3 Configuration Tips
z Configuration tips
1. On the access switch (SwitchA), enable DHCP Snooping and configure the
uplink port (GigabitEthernet 0/3) connecting valid DHCP server as the trusted
port to meet the first requirement.
2. On the access switch (SwitchA), further enable DAI to meet the second
requirement.
z Note