Which command do you enter to enable local authentication for Multilink PPP on an interface?

2 thoughts on “Which command do you enter to enable local authentication for Multilink PPP on an interface?”

1. B is the correct answer.

   Enabling CHAP or PAP Authentication

   Router# configure terminal
   Router(config)# interface serial 0/0/0
   Router(config-if)# ppp authentication chap
   Router(config-if)# aaa authentication ppp
   Router(config-if)# exit
   Router(config)# username name user-maxlinks 1 password password1
   Router(config)# end

   https://www.cisco.com/c/en/us/td/docs/routers/asr920/configuration/guide/mpls/mp-basic-xe-3s-asr920-book/mp-basic-xe-3s-asr903-book_chapter_0110.html

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2. Answer is C

   Multilink PPP (also referred to as MP, MPPP, MLP, or Multilink) provides a method for spreading traffic across multiple physical WAN links while providing packet fragmentation and reassembly, proper sequencing, multivendor interoperability, and load balancing on inbound and outbound traffic.

   Reference: https://www.cisco.com/c/en/us/support/docs/wan/point-to-point-protocol-ppp/10239-mppp-ddr.html

   The command “aaa authentication ppp default local” is used to specify the local username database as the default method for user authentication but this command is configured under global configuration mode only, not on an interface.

   Reference: https://www.cisco.com/c/en/us/td/docs/ios/12_2/security/configuration/guide/fsecur_c/scfathen.html

   So maybe the “ppp chap password password1” command is the best choice here.

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