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-rw-r--r--vnet/vnet/unix/tuntap.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/vnet/vnet/unix/tuntap.c b/vnet/vnet/unix/tuntap.c
index 43ff06aa9ff..4eab3913780 100644
--- a/vnet/vnet/unix/tuntap.c
+++ b/vnet/vnet/unix/tuntap.c
@@ -753,6 +753,12 @@ tuntap_ip4_add_del_interface_address (ip4_main_t * im,
snprintf (ifr.ifr_name, sizeof(ifr.ifr_name),
"%s:%d", tm->tun_name, (int)(ap - tm->subifs));
+ /* the tuntap punt/inject is enabled for IPv4 RX so long as
+ * any vpp interface has an IPv4 address.
+ * this is also ref counted.
+ */
+ ip4_sw_interface_enable_disable (tm->sw_if_index, !is_delete);
+
if (! is_delete)
{
struct sockaddr_in * sin;
@@ -856,6 +862,12 @@ tuntap_ip6_add_del_interface_address (ip6_main_t * im,
snprintf (ifr.ifr_name, sizeof(ifr.ifr_name),
"%s:%d", tm->tun_name, (int)(ap - tm->subifs));
+ /* the tuntap punt/inject is enabled for IPv6 RX so long as
+ * any vpp interface has an IPv6 address.
+ * this is also ref counted.
+ */
+ ip6_sw_interface_enable_disable (tm->sw_if_index, !is_delete);
+
if (! is_delete)
{
int sockfd = socket (AF_INET6, SOCK_STREAM, 0);