H3C Technologies H3C WX3000E Series Wireless Switches - Manual (Page 275)

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Recommended configuration procedure
Step Remarks
1. Enabling DHCP
snooping
Required
By default, DHCP snooping is disabled.
2. Configuring DHCP
snooping functions
on an interface
Required
Specify an interface as trusted and configure DHCP snooping to support Option 82.
By default, an interface is untrusted and DHCP snooping does not support Option
82.
IMPORTANT:
You need to specify the ports connected to the authorized DHCP servers as trusted to
make sure that DHCP clients can obtain valid IP addresses. The trusted port and the
port connected to the DHCP client must be in the same VLAN.
3. Displaying clients'
IP-to-MAC bindings
Optional
Display clients' IP-to-MAC bindings recorded by DHCP snooping.
Enabling DHCP snooping
1. Select Network > DHCP from the navigation tree.
2. Click the DHCP Snooping tab to enter the page shown in Figure 234 .
3. Enable DHCP snooping in the DHCP Snooping field.