Symbol: PPTP_GRE_PKT_ACK_PRESENT
usr.sbin/npppd/pptp/pptp_call.c
498
if (input_flags & PPTP_GRE_PKT_ACK_PRESENT) {
usr.sbin/npppd/pptp/pptpd.c
774
input_flags |= PPTP_GRE_PKT_ACK_PRESENT;