ZyXEL Communications OLT2406 - Configuring Dhcpv4 Global Relay

Chapter 42 DHCP
OLT2406 User’s Guide
336
42.3.2 Configuring DHCPv4 Global Relay
Use this screen to configure global DHCPv4 relay. Click IP Application > DHCP > in the navigation panel
and click the Global link to display the screen as shown.
See Section 27.10.1.4 on page 243 for more information about the configuration order for DHCP option
82 settings in different screens.
Figure 205 IP Application > DHCP > Global
The following table describes the labels in this screen.
Table 157 IP Application > DHCP > Global
LABEL DESCRIPTION
Active Select this check box to enable DHCPv4 relay.
Remote DHCP
Server 1 .. 3
Enter the IP address of a DHCPv4 server in dotted decimal notation.
Relay Agent
Information
Select the Option 82 checkbox to have the OLT add the following information to client DHCP
requests that relays to a DHCP server.
The OLT will perform the following actions when the Option 82 checkbox is selected:
• The Port ID and VLAN ID of the DHCP client are added in the Circuit ID sub-option for DHCP
packets.
• The MAC address of the DHCP client is added in the Remote ID sub-option for DHCP
packets.
Format Select the Format checkbox to have the OLT add the following information to client DHCP
requests that relays to a DHCP server.
The following information will be added in the Circuit ID sub-option for DHCP packets when the
Format checkbox is selected:
SystemName /PortID:NNISVLAN.SNISVLAN ONTID/ONTSerialNumber
Example: OLTLAB /1:1000.1000 10/5A59584535044326
Information Select the Information checkbox to add this name into the client DHCP requests.
The system name of the OLT will be added in the Circuit ID sub-option for DHCP packets when
both of the Option 82 and Information checkboxes are selected. Note that the system name is
added after Port ID and VLAN id in the Circuit ID sub-option for DHCP packets.
You can configure the system name in the Basic Settings > General Setup screen.