xStack
®
DGS-3400 Series Layer 2 Gigabit Ethernet Managed Switch
57
Figure 2 - 58 DHCP Relay Option 61 Add window
The following parameters may be configured.
Parameter Description
Client ID
Use the drop down menu to select the method of identification for the Client ID either MAC
Address or String. The MAC Address will specify the hardware address of the client and the
String will specify the client ID. Choose a method and enter the appropriate information into
the box provided.
Relay Rule
Use the pull-down menu to choose either
Relay
or
Drop
. When drop is specified, the packet
with no matching rules found will be dropped without further process. When relay is selected
the packet will be relayed based on the relay rules. Choose a method and enter the
appropriate information into the box provided.
Click
Apply
to implement changes made.
DHCP Server
For this release, the Switch now has the capability to act as a DHCP server to devices within its locally attached network. DHCP,
or Dynamic Host Configuration Protocol, allows the switch to delegate IP addresses, subnet masks, default gateways and other IP
parameters to devices that request this information. This occurs when a DHCP enabled device is booted on or attached to the
locally attached network. This device is known as the DHCP client and when enabled, it will emit query messages on the network
before any IP parameters are set. When the DHCP server receives this request, it returns a response to the client, containing the
previously mentioned IP information that the DHCP client then utilizes and sets on its local configurations.
The user can configure many DHCP related parameters that it will utilize on its locally attached network, to control and limit the
IP settings of clients desiring an automatic IP configuration, such as the lease time of the allotted IP address, the range of IP
addresses that will be allowed in its DHCP pool, the ability to exclude various IP addresses within the pool as not to make
identical entries on its network, or to assign the IP address of an important device (such as a DNS server or the IP address of the
default route) to another device on the network.
Users also have the ability to bind IP addresses within the DHCP pool to specific MAC addresses in order to keep consistent the
IP addresses of devices that may be important to the upkeep of the network that require a static IP address.
DHCP Server Global Settings
The following window will allow users to globally enable the switch as a DHCP server and set the DHCP Ping Settings to test
connectivity between the DHCP Server and Client.
To view this window, click
Administration > DHCP Server > DHCP Server Global Settings
, as shown below:
