Chapter 74 DHCP Snooping
XGS2220 Series User’s Guide
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74.6 DHCP Snooping VLAN Port Setup
Use this screen to apply a different DHCP option 82 profile to certain ports in a VLAN.
To open this screen, click SECURITY > IPv4 Source Guard > DHCP Snooping > DHCP Snp. VLAN Port Setup.
Figure 363 SECURITY > IPv4 Source Guard > DHCP Snooping > DHCP Snp. VLAN Port Setup
The following table describes the labels in this screen.
74.6.1 Add/EDIT DHCP Snooping VLAN Ports
Use this screen to apply a different DHCP option 82 profile to certain ports in a VLAN.
Click Add/Edit, or select an entry and click Add/Edit in the SECURITY > IPv4 Source Guard > DHCP
Snooping > DHCP Snp. VLAN Port Setup screen to display this screen.
Enabled Select Yes to enable DHCP snooping on the VLAN. You still have to enable DHCP snooping
on the Switch and specify trusted ports.
Note: The Switch will drop all DHCP requests if you enable DHCP snooping and
there are no trusted ports.
Option 82 Profile Select a pre-defined DHCP option 82 profile that the Switch applies to all ports in the
specified VLANs. The Switch adds the information (such as slot number, port number, VLAN ID
and/or system name) specified in the profile to DHCP requests that it broadcasts to the DHCP
VLAN, if specified, or VLAN. You can specify the DHCP VLAN in the SECURITY > IPv4 Source
Guard > DHCP Snooping > DHCP Snp. Setup screen.
Apply Click Apply to save your changes to the Switch’s run-time memory. The Switch loses these
changes if it is turned off or loses power, so use the Save link on the top navigation panel to
save your changes to the non-volatile memory when you are done configuring.
Cancel Click this to reset the values in this screen to their last-saved values.
Table 283 SECURITY > IPv4 Source Guard > DHCP Snooping > DHCP Snp. VLAN Setup (continued)
LABEL DESCRIPTION
Table 284 SECURITY > IPv4 Source Guard > DHCP Snooping > DHCP Snp. VLAN Port Setup
LABEL DESCRIPTION
Index This field displays a sequential number for each entry.
VID This field displays the VLAN to which the ports belongs.
Port This field displays the ports to which the Switch applies the settings.
Profile Name This field displays the DHCP option 82 profile that the Switch applies to the ports.
Add/Edit Click Add/Edit to add a new entry or edit a selected one.
Delete Click Delete to remove the selected entries.
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