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VES-1624FT-55A
Инструкция по эксплуатации Страница: 175

Zyxel VES-1624FT-55A [175/312] The following table describes the labels in this screen

Zyxel VES-1624FT-55A [175/312] The following table describes the labels in this screen

Chapter 29 DHCP Relay

VES-1624FT-55A User’s Guide

175

Figure 93 DHCP Relay

The following table describes the labels in this screen.

Table 57 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 IP DSLAM 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 IP DSLAM 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 IP DSLAM 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 IP DSLAM or the ISP’s name.

Enable Option82

Sub-option2

(Remote ID)

Enable DHCP relay info to have the IP DSLAM 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 IP DSLAM 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 IP DSLAM relays DHCP requests for the selected VLAN.

Auto - The IP DSLAM routes DHCP requests to the active server for the VLAN.

Both - The IP DSLAM 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 IP DSLAM uses when editing

DHCP relay agent information to DHCP requests. See Section 29.2 on page

173.

Active Server This field has no effect if the Relay Mode is Both. If the Relay Mode is Auto,

select which DHCP server (the primary one or the secondary one) to which the

IP DSLAM should relay DHCP requests for the selected VLAN.

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