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-rw-r--r--src/vnet/ip/ip6_neighbor.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/vnet/ip/ip6_neighbor.c b/src/vnet/ip/ip6_neighbor.c
index 46d04769a96..7229591e683 100644
--- a/src/vnet/ip/ip6_neighbor.c
+++ b/src/vnet/ip/ip6_neighbor.c
@@ -3257,6 +3257,7 @@ disable_ip6_interface (vlib_main_t * vm, u32 sw_if_index)
radv_info = pool_elt_at_index (nm->if_radv_pool, ri);
/* check radv_info ref count for other ip6 addresses on this interface */
+ /* This implicitly excludes the link local address */
if (radv_info->ref_count == 0)
{
/* essentially "disables" ipv6 on this interface */
@@ -3749,6 +3750,7 @@ ip6_neighbor_add_del_interface_address (ip6_main_t * im,
vec_validate_init_empty (nm->if_radv_pool_index_by_sw_if_index,
sw_if_index, ~0);
ri = nm->if_radv_pool_index_by_sw_if_index[sw_if_index];
+
if (ri != ~0)
{
/* get radv_info */
@@ -3773,6 +3775,8 @@ ip6_neighbor_add_del_interface_address (ip6_main_t * im,
if (!ip6_address_is_link_local_unicast (address))
radv_info->ref_count--;
}
+ /* Ensure that IPv6 is disabled, and LL removed after ref_count reaches 0 */
+ disable_ip6_interface (vm, sw_if_index);
}
}