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Hierarchy Level

Release Information

Statement introduced in Junos OS Release 13.2X50-D10 for EX Series switches.

Statement introduced in Junos OS Release 13.2 for the QFX Series.

Statement introduced in Junos OS Release 14.1 for MX Series routers.

Support for log option introduced in Junos OS Release 19.1R1 for SRX Series devices.


Enable DHCP services on the device. DHCP services automate network-parameter assignment to network devices. The DHCP service process is enabled by default. However, by default, IP-MAC bindings in the DHCP snooping database do not persist through device reboots. You can inprove performance after rebooting by configuring the IP-MAC bindings to persist, by configuring a storage location for the DHCP database file. When specifying the location for the DHCP database, you must also specify how frequently the switch writes the database entries into the DHCP snooping database file.

The remaining statements are explained separately. Search for a statement in CLI Explorer or click a linked statement in the Syntax section for details.

Required Privilege Level

admin—To view this statement in the configuration.

admin-control—To add this statement to the configuration.