Chapter 18 IP Source Guard

18.4 DHCP Snooping

Use this screen to enable and configure the settings for DHCP Snooping which is used to filter unauthorized DHCP packets on the network. To open this screen, click Security > IP Source Guard > DHCP Snooping > DHCP Snooping.

Figure 55 DHCP Snooping

The following table describes the labels in this screen.

Table 30 DHCP Snooping

LABEL

DESCRIPTION

State

Select Enable to use DHCP snooping on the Switch. You still have

 

to enable DHCP snooping on specific VLANs and specify trusted

 

ports.

 

Note: The Switch will drop all DHCP requests if you enable

 

DHCP snooping and there are no trusted ports.

 

Select Disable to not use DHCP snooping.

 

 

VLAN State

Select Add and enter the VLAN IDs you want the Switch to

 

enable DHCP snooping on. You can designate multiple VLANs

 

individually by using a comma (,) and by range with a hyphen (-

 

).

 

Select Delete and enter the VLAN IDs you no longer want the

 

Switch to use DHCP snooping on.

 

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GS1510 Series User’s Guide