summaryrefslogtreecommitdiff
path: root/nest/neighbor.c
diff options
context:
space:
mode:
Diffstat (limited to 'nest/neighbor.c')
-rw-r--r--nest/neighbor.c20
1 files changed, 17 insertions, 3 deletions
diff --git a/nest/neighbor.c b/nest/neighbor.c
index 506d9bde..11a980b2 100644
--- a/nest/neighbor.c
+++ b/nest/neighbor.c
@@ -114,7 +114,7 @@ neighbor *
neigh_find2(struct proto *p, ip_addr *a, struct iface *ifa, unsigned flags)
{
neighbor *n;
- int class, scope = -1; ;
+ int class, scope = -1;
unsigned int h = neigh_hash(p, a);
struct iface *i;
@@ -231,7 +231,7 @@ neigh_up(neighbor *n, struct iface *i, int scope)
static void
neigh_down(neighbor *n)
{
- DBG("Flushing neighbor %I on %s\n", n->addr, i->name);
+ DBG("Flushing neighbor %I on %s\n", n->addr, n->iface->name);
rem_node(&n->if_n);
if (! (n->flags & NEF_BIND))
n->iface = NULL;
@@ -240,7 +240,21 @@ neigh_down(neighbor *n)
n->proto->neigh_notify(n);
rem_node(&n->n);
if (n->flags & NEF_STICKY)
- add_tail(&sticky_neigh_list, &n->n);
+ {
+ add_tail(&sticky_neigh_list, &n->n);
+
+ /* Respawn neighbor if there is another matching prefix */
+ struct iface *i;
+ int scope;
+
+ if (!n->iface)
+ WALK_LIST(i, iface_list)
+ if ((scope = if_connected(&n->addr, i)) >= 0)
+ {
+ neigh_up(n, i, scope);
+ return;
+ }
+ }
else
sl_free(neigh_slab, n);
}