ZyXEL Communications IES-5000 Support Notes page 33

IES-5000 Support Notes
Network
DHCP
Server
IES-5000(ALC/SLC)
Port 25
ADSL/SHDSL CPE
DHCP Client
Setting up DHCP Relay Option 82
In this application example, we will show you how to configure the IES-5000 to
assign a specific IP address in the client IP pool to a computer based on its DSL port,
VLAN ID and the option 82 string.
For this example, assume that the computer is connected to DSL port 25 with an
Option82 string of "5000" in VLAN 1. We will use the IP Commander DHCP server
(192.168.1.99) to assign this computer an IP address in the client IP pool of
192.168.1.201~192.168.1.203.
1. IES-5000 settings
On the IES-5000, enable DHCP relay and specify the IP address of the DHCP server
(192.168.1.99). Then enable Option82 and enter "5000" as the string.
CI command:
TGE1> ip dhcprelay enable
TGE1> ip dhcprelay relay enable
TGE1> ip dhcprelay server 1 192.168.1.99
TGE1> ip dhcprelay relayinfo add 5000
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