ZyXEL Communications ES3500-24 - Global DHCP Relay Configuration Example

Chapter 37 DHCP
ES3500 Series User’s Guide
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37.3.3 Global DHCP Relay Configuration Example
The follow figure shows a network example where the Switch is used to relay DHCP requests for the
VLAN1 and VLAN2 domains. There is only one DHCP server that services the DHCP clients in both
domains.
Figure 167 Global DHCP Relay Network Example
Configure the DHCP Relay screen as shown. Make sure you select the Option 82 check box to set
the Switch to send additional information (such as the VLAN ID) together with the DHCP requests to
the DHCP server. This allows the DHCP server to assign the appropriate IP address according to the
VLAN ID.
Figure 168 DHCP Relay Configuration Example
VLAN1
VLAN2
192.168.1.100
DHCP Server: