pcr_stat
pipex_export_session_stats(pxi->pxi_session, &req->pcr_stat);
ppp->ipackets += req.pcr_stat.ipackets;
ppp->opackets += req.pcr_stat.opackets;
ppp->ierrors += req.pcr_stat.ierrors;
ppp->oerrors += req.pcr_stat.oerrors;
ppp->ibytes += req.pcr_stat.ibytes;
ppp->obytes += req.pcr_stat.obytes;