D-Link DGS-3130 User Manual - Page 281

DGS-3130 Series Layer 3 Stackable Managed Switch Web UI Reference Guide Figure 9-40 DHCP Snooping Port Settings Window The fields that can be configured are described below: Parameter Unit From Port - To Port Entry Limit Rate Limit Trusted Description Select the Switch unit that will be used for this configuration here. Select the appropriate port range used for the configuration here. Enter the entry limit value here. This value must be between 0 and 1024. Tick the No Limit option to disable the function. Enter the rate limit value here. This value must be between 1 and 300. Tick the No Limit option to disable the function. Select the trusted option here. Options to choose from are No and Yes. Ports connected to the DHCP server or to other Switches should be configured as trusted interfaces. The ports connected to DHCP clients should be configured as untrusted interfaces. DHCP snooping acts as a firewall between untrusted interfaces and DHCP servers. Click the Apply button to accept the changes made. DHCP Snooping VLAN Settings This window is used to display and configure the DHCP snooping VLAN settings. To view the following window, click Security > IMPB > IPv4 > DHCPv4 Snooping > DHCP Snooping VLAN Settings, as shown below: Figure 9-41 DHCP Snooping VLAN Settings Window The fields that can be configured are described below: Parameter VID List Description Enter the VLAN ID list used here. 271