# ip re-authenticate-auto-detect ip-subscriber

#### Syntax

[ no ] ip re-authenticate-auto-detect ip-subscriber

#### Release Information

Command introduced in JunosE Release 10.0.0.

#### Description

Re-authenticates the auto-detected subscribers (dynamic subscriber interfaces) created on static and dynamic IP subscriber interfaces using the DHCP options dhcp-options, dhcp-gi-address, and dhcp-mac-address when the DHCP external application manages the subscriber addresses following a cold boot. The no version negates the command or restores the defaults.

#### Mode

Interface Configuration, Profile Configuration