diff options
Diffstat (limited to 'zebra/interface.c')
| -rw-r--r-- | zebra/interface.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/zebra/interface.c b/zebra/interface.c index 4f761a5e99..6f59a2d399 100644 --- a/zebra/interface.c +++ b/zebra/interface.c @@ -825,6 +825,7 @@ void if_nbr_ipv6ll_to_ipv4ll_neigh_update(struct interface *ifp, struct in6_addr *address, int add) { struct zebra_vrf *zvrf = vrf_info_lookup(ifp->vrf_id); + struct zebra_if *zif = ifp->info; char buf[16] = "169.254.0.1"; struct in_addr ipv4_ll; char mac[6]; @@ -845,6 +846,16 @@ void if_nbr_ipv6ll_to_ipv4ll_neigh_update(struct interface *ifp, /* Add arp record */ kernel_neigh_update(add, ifp->ifindex, ipv4_ll.s_addr, mac, 6, ns_id); + + /* + * We need to note whether or not we originated a v6 + * neighbor entry for this interface. So that when + * someone unwisely accidently deletes this entry + * we can shove it back in. + */ + zif->v6_2_v4_ll_neigh_entry = !!add; + memcpy(&zif->v6_2_v4_ll_addr6, address, sizeof(*address)); + zvrf->neigh_updates++; } |