CHAP_CHALLENGE 3087 net/if_spppsubr.c case CHAP_CHALLENGE: CHAP_CHALLENGE 3450 net/if_spppsubr.c sppp_auth_send(&chap, sp, CHAP_CHALLENGE, sp->confid[IDX_CHAP], CHAP_CHALLENGE 4264 net/if_spppsubr.c case CHAP_CHALLENGE: return "challenge";