Chapter 37 DHCP

The DHCP Relay Agent Information feature adds an Agent Information field to the Option 82 field. The Option 82 field is in the DHCP headers of client DHCP request frames that the Switch relays to a DHCP server.

Relay Agent Information can include the System Name of the Switch if you select this option. You can change the System Name in Basic Settings > General Setup.

The following describes the DHCP relay information that the Switch sends to the DHCP server:

Table 119 Relay Agent Information

FIELD LABELS

DESCRIPTION

Slot ID

(1 byte) This value is always 0 for stand-alone

 

switches.

 

 

Port ID

(1 byte) This is the port that the DHCP client is

 

connected to.

 

 

VLAN ID

(2 bytes) This is the VLAN that the port belongs to.

 

 

Information

(up to 64 bytes) This optional, read-only field is set

 

according to system name set in Basic Settings >

 

General Setup.

 

 

37.3.2 Configuring DHCP Global Relay

Configure global DHCP relay in the DHCP Relay screen. Click IP Application > DHCP in the navigation panel and click the Global link to display the screen as shown.

Figure 178 IP Application > DHCP > Global

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ZyXEL Communications metrogigabit switch manual Configuring Dhcp Global Relay, 351, Relay Agent Information, General Setup

metrogigabit switch specifications

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