HP 830 Series Configuration Manual page 27

Figure 15 Sub-option 1 in verbose padding format
Sub-option 2—Contains the MAC address of the DHCP relay agent interface or the MAC
address of the DHCP snooping device that received the client's request. It has the same format
as that in normal padding format. See
• Private padding format:
Sub-option 1—Contains the VLAN ID of the interface that received the client's request, module
(subcard number of the receiving port on a centralized device or slot number of the receiving
port on a distributed device) and port (number of the receiving port). The value of the sub-option
type is 1.
Figure 16 Sub-option 1 in private padding format
Sub-option 2—Contains the MAC address of the DHCP snooping device that received the
client's request. The value of the sub-option type is 2.
Figure 17 Sub-option 2 in private padding format
Sub-option 9—Contains the sysname and the primary IP address of the Loopback0 interface.
The value of the sub-option type is 9.
Figure 18 Sub-option 9 in private padding format
• Standard padding format:
Sub-option 1—Contains the VLAN ID of the interface that received the client's request, module
(subcard number of the receiving port on a centralized device or slot number of the receiving
port on a distributed device) and port (number of the receiving port). The value of the sub-option
type is 1, and the value of the circuit ID type is 0.
Figure 14.
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