ZyXEL Communications XS1930 Series - Page 270

Chapter 33 DHCP
XS1930 Series User’s Guide
270
Figure 193 IP Application > DHCP > DHCPv4 > VLAN
The following table describes the labels in this screen.
Table 140 IP Application > DHCP > DHCPv4 > VLAN
LABEL DESCRIPTION
VID Enter the ID number of the VLAN to which these DHCP settings apply.
Relay Use this section if you want to configure the Switch to function as a DHCP relay for this VLAN.
Remote DHCP
Server 1 .. 3
Enter the IP address of a DHCP server in dotted decimal notation.
Source Address Enter the source IP address that the Switch adds to DHCP requests from clients on this VLAN
before forwarding them. If you leave this field set to 0.0.0.0, the Switch automatically sets the
source IP address of the DHCP requests to the IP address of the interface on which the packet is
received.
The source IP address helps DHCP clients obtain an appropriate IP address when you configure
multiple routing domains on a VLAN.
Option 82 Profile Select a pre-defined DHCP option 82 profile that the Switch applies to all ports in this VLAN. The
Switch adds the Circuit ID sub-option and/or Remote ID sub-option specified in the profile to
DHCP requests that it relays to a DHCP server.
Add Click this to create a new entry or to update an existing one.
This saves 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 Cancel to begin configuring this screen afresh.
Clear Click Clear to reset the fields to the factory defaults.
VID This field displays the ID number of the VLAN group to which this DHCP settings apply.
Type This field displays Relay for the DHCP mode.
DHCP Status For DHCP server configuration, this field displays the starting IP address and the size of the IP
address pool.
For DHCP relay configuration, this field displays the first remote DHCP server IP address.
Source Address This field displays the source IP address you configured for DHCP requests from clients on this
VLAN.