s! name= encryption= none | opt | req | max pap= enabled | disabled chap= enabled | disabled mschapv2= enabled | disabled ...

%1!s! [name=]                          [[encryption=] none | opt | req | max]                                       [[pap=] enabled | disabled]                                                  [[chap=] enabled | disabled]                                                [[mschapv2=] enabled | disabled]                                             [[psk=] enabled | disabled]                                                 [[secret=] ]                                                                                                              Sets the security options of a demand dial interface                                                                                                  name       - Name of the interface                                         encryption - Data encryption                                               pap        - PAP authentication. Enable only with encryption = none        chap       - CHAP authentication. Enable only with encryption = none       mschapv2   - MS-CHAP v2 authentication.                                    psk        - Custom Pre-shared key IPsec policy for L2TP connection        secret     - The pre-shared key if psk = enabled