ZyXEL Communications GS1920-48HPv2, Руководство пользователя

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Chapter 37 DHCP
GS1920v2 Series User’s Guide
329
37.4.5 G lo b a l DHC P Re la y C o nfig ura tio n Exa m ple
The follow figure shows a network example where the Switch is used to relay DHCP requests for the
VLAN1
and
VLAN2
domains. There is only one DHCP server that services the DHCP clients in both
domains.
Fig ure 236
Global DHCP Relay Network Example
Configure the
DHC P Re la y
screen as shown. Make sure you select a DHCP option 82 profile (
de fa ult1
in
this example) to set the Switch to send additional information (such as the VLAN ID) together with the
DHCP requests to the DHCP server. This allows the DHCP server to assign the appropriate IP address
according to the VLAN ID.
Cancel Click this to reset the values above based on the last selected entry or, if not applicable, to clear
the fields above.
Clear Click
C le a r
to reset the fields to the factory defaults.
Index This field displays a sequential number for each entry. Click an index number to change the
settings.
Port This field displays the port(s) to which the Switch applies the settings.
Profile Name This field displays the DHCP option 82 profile that the Switch applies to the port(s).
Select an entry’s check box to select a specific entry. Otherwise, select the check box in the
table heading row to select all entries.
Delete Select the entry(ies) that you want to remove, then click the
De le te
button to remove the
selected entry(ies) from the table.
Cancel Click this to clear the check boxes above.
Table 159 IP Application > DHCP > DHCPv4 > Global > Port (continued)
LABEL DESC RIPTIO N