PIPEX_PPP_MPPE_REQUIRED
if ((req->pr_ppp_flags & PIPEX_PPP_MPPE_REQUIRED) != 0) {
(((s)->ppp_flags & PIPEX_PPP_MPPE_REQUIRED)? 1 : 0)
req->pr_ppp_flags |= PIPEX_PPP_MPPE_REQUIRED;