ZyXEL Communications GS1920-48HPv2, Руководство пользователя

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Chapter 37 DHCP
GS1920v2 Series User’s Guide
328
The following table describes the labels in this screen.
37.4.4 DHC Pv4 G lo b a l Re la y Po rt C o nfig ure
Use this screen to apply a different DHCP option 82 profile to certain ports on the Switch. To open this
screen, click
IP Applic a tio n > DHC P > DHC Pv4 > G lo b a l > Po rt
.
Fig ure 235
IP Application > DHCP > DHCPv4 > Global > Port
The following table describes the labels in this screen.
Table 158 IP Application > DHCP > DHCPv4 > Global
LABEL DESC RIPTIO N
Active Select this check box to enable DHCPv4 relay.
Remote DHCP
Server 1 .. 3 Enter the IP address of a DHCPv4 server in dotted decimal notation.
Option 82 Profile Select a pre-defined DHCPv4 option 82 profile that the Switch applies to all ports. The Switch
adds the Circuit ID sub-option and/or Remote ID sub-option specified in the profile to DHCP
requests that it relays to a DHCP server.
Apply Click
Apply
to save your changes to the Switch’s run-time memory. The Switch loses these
changes if it is turned off or loses power, so use the
Sa ve
link on the top navigation panel to save
your changes to the non-volatile memory when you are done configuring.
Cancel Click
C a nc e l
to begin configuring this screen afresh.
Table 159 IP Application > DHCP > DHCPv4 > Global > Port
LABEL DESC RIPTIO N
Port Enter the number of port(s) to which you want to apply the specified DHCP option 82 profile.
You can enter multiple ports separated by (no space) comma (,) or hyphen (-). For example,
enter “3-5” for ports 3, 4, and 5. Enter “3,5,7” for ports 3, 5, and 7.
Option 82 Profile Select a pre-defined DHCP option 82 profile that the Switch applies to the specified port(s). The
Switch adds the Circuit ID sub-option and/or Remote ID sub-option specified in the profile to
DHCP requests that it relays to a DHCP server.
The profile you select here has priority over the one you select in the
DHC P > DHC Pv4 > G lo b a l
screen.
Add Click this to create a new entry or to update an existing one.
This saves your changes to the Switch’s run-time memory. The Switch loses these changes if it is
turned off or loses power, so use the
Sa ve
link on the top navigation panel to save your changes
to the non-volatile memory when you are done configuring.