Option 82 Supporting Configuration; Introduction To Dhcp-Server Option 82; Configuration Prerequisites; Configuring The Option 82 Supporting Function - H3C S3600 Series Operation Manual

Operation Manual – DHCP
H3C S3600 Series Ethernet Switches-Release 1510
address to the DHCP client only when no response is received during the whole course,
thus ensuring that an IP address is assigned to one DHCP client exclusively.
Table 2-21 Configure IP address detecting
Enter system view
Set the maximum number
of ping
performed by a DHCP
server
Set the response timeout
time
operation

2.5 Option 82 Supporting Configuration

2.5.1 Introduction to DHCP-Server Option 82

If a DHCP server supports option 82, after the DHCP server receives packets
containing option 82 forwarded by the DHCP relay, the DHCP server processes the
packets normally and assigns IP addresses for the clients.
If a DHCP server does not support option 82, after the DHCP server receives packets
containing option 82 forwarded by the DHCP relay, the DHCP server does not process
the packets.
For details of option 82, see section 3.1.3 "Option 82 Supporting".

2.5.2 Configuration Prerequisites

Before enabling option 82 for the DHCP server, you need to configure the DHCP server
based on global address pools or interface address pools.

2.5.3 Configuring the Option 82 Supporting Function

Table 2-22 Enable the DHCP server to support option 82
Operation
Enter system view
Enable the DHCP
server to support
option 82
Operation
system-view
operations dhcp server ping
packets number
dhcp server ping
of each ping
timeout milliseconds
system-view
dhcp
information enable
Chapter 2 DHCP Server Configuration
Command
—
Optional
By default, a DHCP server
performs the ping operation
twice to test an IP address.
Optional
The default timeout time is
500 milliseconds.
Command
server relay
2-22
Description
Description
—
Required
By default, the DHCP
server supports option 82