# ppp authentication

#### Syntax

ppp authentication [ virtual-router vrName ] { authProtocol }

no ppp authentication

#### Release Information

Command introduced before JunosE Release 7.1.0.
eap keyword added in JunosE Release 7.3.0.

#### Description

Requests authentication from a PPP peer router. The no version removes the authentication requirement.

#### Options

- vrName—Name of a virtual router to be used as the authentication virtual router
- authProtocol—One or more of the following protocols, in order of preference; if the peer router refuses to negotiate the first choice, then the local router requests the next specified protocol, and so on; if the peer router refuses to negotiate authentication, the local router terminates the session
  - eap—Specifies EAP authentication protocol
  - chap—Specifies CHAP authentication protocol
  - pap—Specifies PAP authentication protocol

#### Mode

Interface Configuration, Profile Configuration, Subinterface Configuration