Zyxel VES-1616FE-55A [173/318] The following table describes the labels in this screen

Zyxel VES-1616FE-55A [173/318] The following table describes the labels in this screen
Chapter 26 DHCP Relay
VES-1616FE-55A User’s Guide
173
Figure 101 DHCP Relay
The following table describes the labels in this screen.
Table 61 DHCP Relay
LABEL DESCRIPTION
VLAN ID Enter the ID of the VLAN served by the specified DHCP relay(s). Enter 0 to set
up the default DHCP relay(s).
Enable DHCP
Relay:
Select this to have the VES-1616FE-55A relay DHCP requests in the selected
VLAN to a DHCP server and the server’s responses back to the clients.
Enable Option82
Sub-option1 (Circuit
ID)
Select this to have the VES-1616FE-55A add the originating port numbers to
DHCP requests in the selected VLAN regardless of whether the DHCP relay is
on or off. In the field next to the check box, you can also specify up to 23 ASCII
characters of additional information for the VES-1616FE-55A to add to the
DHCP requests that it relays to a DHCP server. Examples of information you
could add would be the chassis number of the VES-1616FE-55A or the ISP’s
name.
Enable Option82
Sub-option2
(Remote ID)
Enable DHCP relay info to have the VES-1616FE-55A add the sub-option 2
(Remote ID) to DHCP requests in the selected VLAN regardless of whether the
DHCP relay is on or off. In the field next to the check box, you can also specify
up to 23 ASCII characters of additional information for the VES-1616FE-55A to
add to the DHCP requests that it relays to a DHCP server.
Primary Server IP Enter the IP address of one DHCP server to which the switch should relay
DHCP requests for the selected VLAN.
Secondary Server
IP
Enter the IP address of a second DHCP server to which the switch should relay
DHCP requests for the selected VLAN. Enter 0.0.0.0 if there is only one DHCP
relay for the selected VLAN.
Relay Mode Specify how the VES-1616FE-55A relays DHCP requests for the selected
VLAN.
Auto - The VES-1616FE-55A routes DHCP requests to the active server for the
VLAN.
Both - The VES-1616FE-55A routes DHCP requests to the primary and
secondary server for the VLAN, regardless of which one is active.
Option Mode Specify the type of format (Private or TR101) the VES-1616FE-55A uses when
editing DHCP relay agent information to DHCP requests. See Section 26.2 on
page 171.

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