XGS2220 Series User’s Guide
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Figure 313
NETWORKING > DHCP > DHCPv4 Relay > DHCP Relay VLAN Setting > Add/Edit (Port)
The following table describes the labels in this screen.
62.6 DHCPv6 Relay
A DHCPv6 relay agent is on the same network as the DHCPv6 clients and helps forward messages
between the DHCPv6 server (that is in another network) and the DHCPv6 clients.
The DHCPv6 relay agent can add the remote identification (remote-ID) option and the interface-ID
option to the Relay-Forward DHCPv6 messages. The remote-ID option carries a user-defined string, such
as the system name. The interface-ID option provides slot number, port information and the VLAN ID to
the DHCPv6 server. The remote-ID option (if any) is stripped from the Relay-Reply messages before the
relay agent sends the packets to the clients. The DHCPv6 server copies the interface-ID option from the
Relay-Forward message into the Relay-Reply message and sends it to the relay agent. The interface-ID
should not change even after the relay agent restarts.
Use this screen to view and configure DHCPv6 relay settings for a specific VLAN on the Switch. Click
NETWORKING
>
DHCP
>
DHCPv6 Relay
in the navigation panel to display the screen as shown.
Figure 314
NETWORKING > DHCP > DHCPv6 Relay
Table 236 NETWORKING > DHCP > DHCPv4 Relay > DHCP Relay VLAN Setting > Add/Edit (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
NETWORKING
>
DHCP
>
DHCPv4 Relay
>
DHCP Relay VLAN Setting
(the
DHCP Relay VLAN Setting
section)>
Add/Edit
screen.
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
Save
link on the top navigation panel to save
your changes to the non-volatile memory when you are done configuring.
Clear
Click
Clear
to clear the fields to the factory defaults.
Cancel
Click
Cancel
to not save the configuration you make and return to the last screen.