NDF_ISROUTER_ON
if ((isrouter != NDF_ISROUTER_ON) &&
from, NDF_ISROUTER_ON);
update_ra_flag(pi, from, NDF_ISROUTER_ON);
if (flags & NDF_ISROUTER_ON) {
lnr->lnr_flags = NDF_ISROUTER_ON;
switch (inflags & (NDF_ISROUTER_ON|NDF_ISROUTER_OFF)) {
case NDF_ISROUTER_ON:
case (NDF_ISROUTER_OFF|NDF_ISROUTER_ON):