Dhcpv4 Option 82 Profile - ZyXEL Communications GS2210 Series User Manual

35.4.1.1 DHCPv4 Relay Agent Information Format
A DHCP Relay Agent Information option has the following format.
Table 136 DHCP Relay Agent Information Option Format
Code
(82)
i1, i2 and iN are DHCP relay agent sub-options, which contain additional information about the
DHCP client. You need to define at least one sub-option.
35.4.1.2 Sub-Option Format
There are two types of sub-option: "Agent Circuit ID Sub-option" and "Agent Remote ID Sub-
option". They have the following formats.
Table 137 DHCP Relay Agent Circuit ID Sub-option Format
SubOpt Code
1
(1 byte)
Table 138 DHCP Relay Agent Remote ID Sub-option Format
SubOpt Code
2
(1 byte)
The 1 in the first field identifies this as an Agent Circuit ID sub-option and 2 identifies this as an
Agent Remote ID sub-option. The next field specifies the length of the field.

35.4.2 DHCPv4 Option 82 Profile

Use this screen to create DHCPv4 option 82 profiles. Click IP Application > DHCP > DHCPv4 in
the navigation panel and click the Option 82 Profile link to display the screen as shown.
Chapter 35 DHCP
Length i1
(N)
Length
N Slot ID, Port ID, VLAN ID, System Name or String
(1 byte)
Length
N MAC Address or String
(1 byte)
GS2210 Series User's Guide
i2 iN
...
Value
Value
286