Dhcp Option; Entering Dhcp Option Mode - SMC Networks 7824M/VSW - annexe 1 Manual

CLI
8.6.5
8.6.5.1
318

DHCP Option

This function enables administrators to define DHCP options that are carried in the DHCP
communication between DHCP server and client or relay agent. The following indicates
the format of the DHCP options field.
DHCP Option Format
Code
1 byte 1 byte or variable
A code identifies each DHCP option. It can be expressed in value 0 to 255 by user con-
figuration and some of them are predefined in the standards. (128 ~ 254 is site specific) A
length can be variable according to value or can be fixed. A value contains actual informa-
tion such an IP address, string, or index, which is inserted into the DHCP packet.
Administrators can configure a DHCP option format in DHCP Option mode, which is glob-
ally used over the DHCP functions. The DHCP option format can be applied in other
DHCP software modules and the following figure indicates it.
DHCP Option Format

Entering DHCP Option Mode

To enter the DHCP option mode, use the following command.
Command
ip dhcp option format NAME
Length
DHCP Server Option
DHCP Snooping Option
DHCP Option82 Sub-option
Mode
Enters the DHCP option mode.
Global
NAME: DHCP option format name
Management Guide
TigerAccess™ EE
Value
64 bytes
Description
SMC7824M/VSW