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xStack
NOTE: For the circuit ID sub-option of a standalone switch, the module field is always zero.
Circuit ID sub-option format:
1. Sub-option type
2. Length
3. Circuit ID type
4. Length
5. VLAN: the incoming VLAN ID of DHCP client packet.
6. Module: For a standalone switch, the Module is always 0; for a stackable switch, the Module is the Unit ID.
7. Port: The incoming port number of the DHCP client packet, the port number starts from 1.
Remote ID sub-option format:
1. Sub-option type
2. Length
3. Remote ID type
4. Length
5. MAC address: The Switch's system MAC address.
DHCP Relay Interface Settings
Users can set up a server, by IP address, for relaying DHCP information to the DHCP Server. The user may enter a
previously configured IP interface on the Switch that will be connected directly to the DHCP client using this window.
Properly configured settings will be displayed in the DHCP Relay Interface Table at the bottom of the window, once
the user clicks the Apply button. The user may add up to four server IP addresses per IP interface on the Switch.
Entries may be deleted by clicking the corresponding Delete button.
To view the following window, click Network Application > DHCP > DHCP Relay > DHCP Relay Interface Settings,
as shown below:
DES-3810 Series Layer 3 Managed Ethernet Switch Web UI Reference Guide
Figure 10-2 Circuit ID sub-option format
Figure 10-3 Remote ID sub-option format
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