SPP_PMTUD_DISABLE
SPP_PMTUD = SPP_PMTUD_ENABLE | SPP_PMTUD_DISABLE,
if ((params->spp_flags & SPP_PMTUD_DISABLE) && params->spp_pathmtu) {
int update = (trans->param_flags & SPP_PMTUD_DISABLE) &&
if (transport->param_flags & SPP_PMTUD_DISABLE) {