ZyXEL Communications OLT2406 User Manual page 599

Figure 279 Example: Global DHCP Relay
This example shows how to configure the OLT for this configuration. DHCP relay agent information option
82 is also enabled.
OLT2406# configure
OLT2406(config)# dhcp smart-relay
OLT2406(config)# dhcp smart-relay helper-address 192.168.1.100
OLT2406(config)# dhcp smart-relay option
OLT2406(config)# exit
OLT2406# show dhcp smart-relay
DHCP Relay Agent Configuration
Active: Yes
Remote DHCP Server 1:192.168.1.100
Remote DHCP Server 2:
Remote DHCP Server 3:
Option82: Enable
In this example, there are two VLANs (VIDs 1 and 2) in a campus network. Two DHCP servers are installed
to serve each VLAN. The OLT forwards DHCP requests from the dormitory rooms (VLAN 1) to the DHCP
server with IP address 192.168.1.100. DHCP requests from the academic buildings (VLAN 3) are sent to
the other DHCP server with IP address 172.16.10.100.
Chapter 82 DHCP
0.0.0.0
0.0.0.0
Option82Inf: Disable
OLT2406 User's Guide
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