GS2220 Series User’s Guide
379
Figure 289
IP Application > DHCP > DHCPv4 > VLAN > Port
The following table describes the labels in this screen.
44.4.8 Example: DHCP Relay for Two VLANs
The following example displays two VLANs (VIDs 1 and 2) for a campus network. Two DHCP servers are
installed to serve each VLAN. The system is set up to forward DHCP requests from the dormitory rooms
(VLAN 1) to the DHCP server with an IP address of 192.168.1.100. Requests from the academic buildings
(VLAN 2) are sent to the other DHCP server with an IP address of 172.16.10.100.
Table 198 IP Application > DHCP > DHCPv4 > VLAN > Port
LABEL
DESCRIPTION
VID
Enter the ID number of the VLAN you want to configure here.
Port
Enter the number of ports 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 ports in this
VLAN. 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
DHCP
>
DHCPv4
>
VLAN
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
Save
link on the top navigation panel to save your changes
to the non-volatile memory when you are done configuring.
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
Clear
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.
VID
This field displays the VLAN to which the ports belongs.
Port
This field displays the ports to which the Switch applies the settings.
Profile Name
This field displays the DHCP option 82 profile
that the Switch applies to the ports in this VLAN.
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 entries that you want to remove, then click the
Delete
button to remove the selected
entries from the table.
Cancel
Click this to clear the check boxes above.
Summary of Contents for GS2220-10
Page 23: ...23 PART I User s Guide...
Page 49: ...49 PART II Technical Reference...
