Huawei Quidway S3900 Series Operation Manual page 586

Operation Manual - DHCP
Quidway S3900 Series Ethernet Switches-Release 1510
Configure the connection between
the DHCP global address pool and
the BIMS server
2.2.2 Enabling DHCP
You need to enable DHCP before performing other DHCP-related configurations,
which takes effect only after DHCP is enabled.
Table 2-2 Enable DHCP
Operation
Enter system view
Enable DHCP
Note:
To prevent malicious attacks to unused sockets and enhance security, S3900 series
Ethernet switches provide the following functions:
When DHCP is enabled, sockets UDP 67 and UDP 68 used by DHCP are enabled.
When DHCP is disabled, sockets UDP 67 and UDP 68 are disabled at the same
time.
The preceding functions are implemented as follows:
After you enable DHCP by using the dhcp enable command, if the DHCP server
and DHCP relay are not configured, sockets UDP 67 and UDP 68 will not be
enabled. If the DHCP server and DHCP relay are configured, sockets UDP 67 and
UDP 68 will be enabled.
After you disable DHCP by using the undo dhcp enable command, even if the
DHCP server and DHCP relay are configured, sockets UDP 67 and UDP 68 will be
disabled.
Configuration task
Command
system-view
dhcp enable
Huawei Technologies Proprietary
Chapter 2 DHCP Server Configuration
Remarks
Optional
—
Required
By default, DHCP is enabled
2-5
Section
2.2.9
Configuring Connection
Between a DHCP Global
Address Pool and a BIMS
Server"
Description