Digisol DG-FS4528P, Management Manual

Page: 91 / 973

C
HAPTER
4 | Basic Management Tasks
Setting the Switch’s IP Address
– 91 –
DHCP Relay Server – Specifies the DHCP servers to be used by the
switch’s DHCP relay agent in order of preference.
This switch supports DHCP relay service for attached host devices. If
DHCP relay is enabled (by specifying the address for at least one DHCP
server), and this switch sees a DHCP request broadcast, it inserts its
own IP address into the request so that the DHCP server will know the
subnet where the client is located. Then, the switch forwards the packet
to the DHCP server. When the server receives the DHCP request, it
allocates a free IP address for the DHCP client from its defined scope
for the DHCP client’s subnet, and sends a DHCP response back to the
DHCP relay agent (i.e., this switch). This switch then passes the DHCP
response received from the server to the client.
You must specify the IP address for at least one DHCP server.
Otherwise, the switch’s DHCP relay agent will not forward client
requests to a DHCP server.
DHCP Relay Option 82 Sub-option Format – Disables use of sub-
type and sub-length fields in circuit-ID (CID) and remote-ID (RID) in
Option 82 information.
DHCP Relay Option 82 Remote ID – Specifies the frame format to
use for the remote-id when Option 82 information is generated by the
switch.
MAC-HEX - Includes a MAC address field for the relay agent in
hexadecimal format (that is, the MAC address of the switch’s CPU).
MAC-ACSII - Includes a MAC address field for the relay agent in
ASCII format (that is, the MAC address of the switch’s CPU).
IP-HEX - Includes the IP address field for the relay agent in
hexadecimal format (that is, the IP address of the management
interface).
IP-ASCII - Includes the IP address field for the relay agent in
ASCII format (that is, the IP address of the management interface).
String - An arbitrary string inserted into the remote identifier field.
(Range: 1-32 characters)
Restart DHCP – Requests a new IP address from the DHCP server.
W
EB
I
NTERFACE
To set a static address for the switch:
1. Click System, IP Configuration.
2. Select the VLAN through which the management station is attached,
set the IP Address Mode to “Static,” enter the IP address, subnet mask