Chapter 74 DHCP Snooping
XGS2220 Series User’s Guide
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74.5 DHCP Snooping VLAN Setup
Use this screen 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.
To open this screen, click SECURITY > IPv4 Source Guard > DHCP Snooping > DHCP Snp. VLAN Setup.
Figure 362 SECURITY > IPv4 Source Guard > DHCP Snooping > DHCP Snp. VLAN Setup
The following table describes the labels in this screen.
Rate (pps) Specify the maximum number for DHCP packets (1 – 2048) that the Switch receives from
each port each second. The Switch discards any additional DHCP packets. Enter 0 to
disable this limit, which is recommended for trusted ports.
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 282 SECURITY > IPv4 Source Guard > DHCP Snooping > DHCP Snp. Port Setup (continued)
LABEL DESCRIPTION
Table 283 SECURITY > IPv4 Source Guard > DHCP Snooping > DHCP Snp. VLAN Setup
LABEL DESCRIPTION
Search VLAN by VID Enter the VLAN ID you want to manage. Use a comma (,) to separate individual VLANs or a
hyphen (-) to indicates a range of VLANs. For example, “3,4” or “3-9”.
Search Click this to display the specified range of VLANs in the section below.
The Number of
VLANs
This displays the number of VLAN search results.
VID This field displays the VLAN ID of each VLAN in the range specified above. If you configure
the * VLAN, the settings are applied to all VLANs.
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