Product Manual

DES-3526 / DES-3526DC Fast Ethernet Layer 2 Switch
NOTE: For the circuit ID sub-option of a standalone switch, the module field is
always zero.
Circuit ID sub-option format :
1. 2. 3. 4. 5. 6. 7.
1 6 0 4 VLAN Module Port
1 byte 1 byte 1 byte 1 byte 2 bytes 1 byte 1 byte
a. Sub-option type
b. Length
c. Circuit ID type
d. Length
e. VLAN : the incoming VLAN ID of DHCP client packet.
f. Module : For a standalone switch, the Module is always 0; For a stackable switch, the
Module is the Unit ID.
g. Port : The incoming port number of DHCP client packet, port number starts from 1.
Remote ID sub-option format :
1. 2. 3. 4. 5.
2 8 0 6 MAC address
1 byte 1 byte 1 byte 1 byte 6 bytes
1. Sub-option type
2. Length
3. Remote ID type
4. Length
5. MAC address: The Switch’s system MAC address.
Figure 6- 87. Circuit ID and Remote ID Sub-option Format
DHCP/BOOTP Relay Interface Settings
The DHCP/ BOOTP Relay Interface Settings allow the user to set up a server, by IP address, for
relaying DHCP/ BOOTP information to the Switch. The user may enter a previously configured IP
interface on the Switch that will be connected directly to the DHCP/BOOTP server using the
following window. Properly configured settings will be displayed in the BOOTP Relay Table at the
bottom of the following window, once the user clicks the Add button under the Apply heading. The
user may add up to four server IPs per IP interface on the Switch. Entries may be deleted by clicking
it’s corresponding . To enable and configure DHCP/BOOTP Relay Global Settings on the
Switch, click Configuration > Layer 3 Networking > DHCP/BOOTP Relay > DHCP/BOOTP
Relay Interface Settings:
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