ZyXEL Communications GS1920-48HPv2, Руководство пользователя

Страница: 326 / 432

Chapter 37 DHCP
GS1920v2 Series User’s Guide
326
The 1 in the first field identifies this as an Agent Circuit ID sub-option and 2 identifies this as an Agent
Remote ID sub-option. The next field specifies the length of the field.
37.4.2 DHC Pv4 O ptio n 82 Pro file
Use this screen to create DHCPv4 option 82 profiles. Click
IP Applic a tio n > DHC P > DHC Pv4
in the
navigation panel and click the
O ptio n 82 Pro file
link to display the screen as shown.
Fig ure 233
IP Application > DHCP > DHCPv4 > Option 82 Profile
The following table describes the labels in this screen.
Table 156 DHCP Relay Agent Remote ID Sub-option Format
SubOpt Code Length Value
2
(1 byte)
N
(1 byte)
MAC Address or String
Table 157 IP Application > DHCP > DHCPv4 > Option 82 Profile
LABEL DESC RIPTIO N
Name Enter a descriptive name for the profile for identification purposes. You can use up to 32 ASCII
characters. Spaces are allowed.
Circuit-ID Use this section to configure the Circuit ID sub-option to include information that is specific to
the relay agent (the Switch).
Enable Select this option to have the Switch add the Circuit ID sub-option to client DHCP requests that it
relays to a DHCP server.
slot-port Select this option to have the Switch add the number of port that the DHCP client is connected
to.
vlan Select this option to have the Switch add the ID of VLAN which the port belongs to.
hostname This is the system name you configure in the
Ba sic Se tting
>
G e ne ra l Se tup
screen.
Select this option for the Switch to add the system name to the client DHCP requests that it
relays to a DHCP server.