Chapter 26 DHCP Snooping
XS1930 Series User’s Guide
213
CHAPTER 26
DHCP Snooping
26.1 DHCP Snooping Overview
With DHCP snooping, the Switch can block a DHCP server on a snooped VLAN that comes from an
untrusted port in your network.
26.1.1 What You Can Do
• Use the DHCP Snooping screen (Section 26.2 on page 213) to look at various statistics about the DHCP
snooping database.
• Use this DHCP Snooping Configure screen (Section 26.3 on page 216) to enable DHCP snooping on
the Switch (not on specific VLAN), specify the VLAN where the default DHCP server is located, and
configure the DHCP snooping database.
• Use the DHCP Snooping Port Configure screen (Section 26.3.1 on page 218) to specify whether ports
are trusted or untrusted ports for DHCP snooping.
• Use the DHCP Snooping VLAN Configure screen (Section 26.3.2 on page 219) to enable DHCP
snooping on each VLAN and to specify whether or not the Switch adds DHCP relay agent option 82
information to DHCP requests that the Switch relays to a DHCP server for each VLAN.
• Use the DHCP Snooping VLAN Port Configure screen (Section 26.3.3 on page 220) to apply a different
DHCP option 82 profile to certain ports in a VLAN.
26.2 DHCP Snooping
Use this screen to look at various statistics about the DHCP snooping database.
To open this screen, click Advanced Application > DHCP Snooping.
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