Operation Manual - DHCP
Quidway S3900 Series Ethernet Switches-Release 1510 Chapter 2 DHCP Server Configuration
Huawei Technologies Proprietary
2-25
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
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 Command Description
Enter system view
system-view
—
Enable the DHCP
server to support
option 82
dhcp server relay
information enable
Required
By default, the DHCP
server supports option 82
Note:
To enable option 82 normally, you need to perform corresponding configuration on
both the DHCP server and the DHCP relay. For the configuration of the DHCP relay,
see
3.1.3 Option 82 Supporting.
2.6 Option 184 Supporting Configuration
2.6.1 Introduction to Option 184
Option 184 is an RFC reserved option, and the information it carries can be
customized. Huawei-3Com defines four proprietary sub-options for this option,
enabling the DHCP server to put the information required by a DHCP client in the
response packet to the client.
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