ZyXEL Communications XGS-4526 - Manual (Page 255)

Chapter 26 IP Source Guard
XGS-4526 User’s Guide
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open this screen, click Advanced Application > IP Source Guard > DHCP
Snooping > Configure > VLAN.
Figure 125 DHCP Snooping VLAN Configure
The following table describes the labels in this screen.
Table 81 DHCP Snooping VLAN Configure
LABEL DESCRIPTION
Show VLAN Use this section to specify the VLANs you want to manage in the
section below.
Start VID Enter the lowest VLAN ID you want to manage in the section
below.
End VID Enter the highest VLAN ID you want to manage in the section
below.
Apply Click this to display the specified range of VLANs in the section
below.
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.
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.
Option82 Select this to have the Switch add the slot number, port number
and VLAN ID to DHCP requests that it broadcasts to the DHCP
VLAN, if specified, or VLAN. You can specify the DHCP VLAN in
the DHCP Snooping Configure screen. See
Section 26.5 on
page 251 .
Information Select this to have the Switch add the system name to DHCP
requests that it broadcasts to the DHCP VLAN, if specified, or
VLAN. You can configure the system name in the General Setup
screen. See
Chapter 8 on page 79 . You can specify the DHCP
VLAN in the DHCP Snooping Configure screen. See Section
26.5 on page 251 .