# authentication

#### Syntax

authentication { rsa-sig | pre-share }

no authentication

#### Release Information

Command introduced before JunosE Release 7.1.0.

#### Description

Specifies the authentication method to use in the IKE policy. The no version restores the default, preshared keys.

#### Options

- rsa-sig—Specifies RSA signature as the authentication method
- pre-share—Specifies preshared keys as the authentication method

#### Mode

IKE Policy Configuration