diff options
Diffstat (limited to 'sys/netinet6/nd6.c')
| -rw-r--r-- | sys/netinet6/nd6.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/sys/netinet6/nd6.c b/sys/netinet6/nd6.c index 373158512bd4..4298ce2a45b9 100644 --- a/sys/netinet6/nd6.c +++ b/sys/netinet6/nd6.c @@ -158,8 +158,14 @@ nd6_ifattach(ifp) #define ND nd_ifinfo[ifp->if_index] - /* don't initialize if called twice */ - if (ND.linkmtu) + /* + * Don't initialize if called twice. + * XXX: to detect this, we should choose a member that is never set + * before initialization of the ND structure itself. We formaly used + * the linkmtu member, which was not suitable because it could be + * initialized via "ifconfig mtu". + */ + if (ND.basereachable) return; ND.linkmtu = ifindex2ifnet[ifp->if_index]->if_mtu; |