poe_mkheader
extern poep_t *poe_mkheader(void *dptr, uint8_t codeval, int sessionid);
opoe = poe_mkheader(outp, ispadi ? POECODE_PADO : POECODE_PADS, 0);
poep = poe_mkheader(pkt_output, POECODE_PADT, ptp.ptp_lsessid);
poep = poe_mkheader(pkt_output, POECODE_PADI, 0);
poep = poe_mkheader(pkt_output, POECODE_PADR, 0);
poep = poe_mkheader(pkt_output, POECODE_PADT,