D-Link xStack Reference Manual page 312

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xStack DGS-3120 Series Layer 3 Managed Gigabit Switch CLI Reference Guide
25-20 config dhcp_relay option_82 circuit_id
Description
This command is used to configure the DHCP relay option 82 circuit ID.
Format
config dhcp_relay option_82 circuit_id [default | user_define <desc 32> | vendor1 | vendor2
| vendor4]
Parameters
default - If configure to default, the circuit_id use the original format:
a.
1
1 byte
a. Sub-option type (1 means circuit ID)
b. Length, it should be 6.
c. Circuit ID's sub-option, it should be 0.
d. Sub-option's length, it should be 4
e. VLAN ID (S-VID)
f. Module ID, for standalone switch, it is 0; for stacking switch, it is the box ID that
assigned by stacking.
g. Port ID: port number of each box.
user_define - Use user-defined string as the circuit ID.
a.
2
1 byte
<desc 32> - Enter the user-defined ID. Space is allowed in the string.
vendor1 - If configure to vendor1, the circuit ID uses the following format to communicate with
Alcatel-Lucent's server:
a. b.
1 0x10
1 1
byte byte
a. Sub-option type (1 means circuit ID)
b. Length
c. Circuit ID's sub-option's first tag, it should be 0.
d. First tag's length, it should be 6
e. VLAN ID
f. Slot ID, for standalone switch, it is 1; for stacking switch, it is the box ID that assigned
by stacking.
g. Port ID: port number of each box
h. Circuit ID's sub-option's second tag, it should be 1.
i. Second tag's length, it should be 6.
j. MAC address: System's MAC address
vendor2 - If configure to vendor2, the circuit ID uses the following format:
a.
1
1 byte
a. Sub-option type, 1 indicates this is the Circuit ID.
b. Length: length of value
c. Value: Character string. The incoming port number of DHCP client packet, start with
character "p". Ex: p02 means port 2. (No Circuit ID sub-option type, directly fill the
value.) For stacking port(1~768), The format of port 129(port 1 of box3) is p129.
b. c.
0x6 0
1 byte 1 byte
b.
n+2
1 byte
c. d. e.
0 6 VLAN
1 1 2
byte byte bytes
b.
n
1 byte
307
d. e.
4 VLAN
1 byte 2 bytes
c. d.
1 n
1 byte 1 byte
f. g.
Slot ID Port ID
2 2
bytes bytes
f. g.
Module ID Port ID
1 byte 1 byte
e.
user define
Max. 32 bytes
h. i. j.
1 6 MAC
1 1 2
byte byte bytes
c.
Port number
N bytes