All Ethernet drivers (again): Missed one place where arp_out() is called and neighber_out() needs to be called

21 files changed, 485 insertions, 22 deletions

diff --git a/nuttx/arch/arm/src/c5471/c5471_ethernet.c b/nuttx/arch/arm/src/c5471/c5471_ethernet.c
index 35a4ae29a..9c34efeb3 100644
--- a/nuttx/arch/arm/src/c5471/c5471_ethernet.c
+++ b/nuttx/arch/arm/src/c5471/c5471_ethernet.c
@@ -988,7 +988,30 @@ static int c5471_txpoll(struct net_driver_s *dev)
 
   if (c5471->c_dev.d_len > 0)
     {
-      arp_out(&c5471->c_dev);
+      /* Look up the destination MAC address and add it to the Ethernet
+       * header.
+       */
+
+#ifdef CONFIG_NET_IPv4
+#ifdef CONFIG_NET_IPv6
+      if (IFF_IS_IPv4(c5471->c_dev.d_flags))
+#endif
+        {
+          arp_out(&c5471->c_dev);
+        }
+#endif /* CONFIG_NET_IPv4 */
+
+#ifdef CONFIG_NET_IPv6
+#ifdef CONFIG_NET_IPv4
+      else
+#endif
+        {
+          neighbor_out(&c5471->c_dev);
+        }
+#endif /* CONFIG_NET_IPv6 */
+
+      /* Send the packet */
+
       c5471_transmit(c5471);
 
       /* Check if the ESM has let go of the RX descriptor giving us access
diff --git a/nuttx/arch/arm/src/kinetis/kinetis_enet.c b/nuttx/arch/arm/src/kinetis/kinetis_enet.c
index e28f8b630..8cf87932d 100644
--- a/nuttx/arch/arm/src/kinetis/kinetis_enet.c
+++ b/nuttx/arch/arm/src/kinetis/kinetis_enet.c
@@ -448,7 +448,30 @@ static int kinetis_txpoll(struct net_driver_s *dev)
 
   if (priv->dev.d_len > 0)
     {
-      arp_out(&priv->dev);
+      /* Look up the destination MAC address and add it to the Ethernet
+       * header.
+       */
+
+#ifdef CONFIG_NET_IPv4
+#ifdef CONFIG_NET_IPv6
+      if (IFF_IS_IPv4(priv->dev.d_flags))
+#endif
+        {
+          arp_out(&priv->dev);
+        }
+#endif /* CONFIG_NET_IPv4 */
+
+#ifdef CONFIG_NET_IPv6
+#ifdef CONFIG_NET_IPv4
+      else
+#endif
+        {
+          neighbor_out(&priv->dev);
+        }
+#endif /* CONFIG_NET_IPv6 */
+
+      /* Send the packet */
+
       kinetis_transmit(priv);
 
       /* Check if there is room in the device to hold another packet. If not,
diff --git a/nuttx/arch/arm/src/lpc17xx/lpc17_ethernet.c b/nuttx/arch/arm/src/lpc17xx/lpc17_ethernet.c
index d0e085d4f..fdda0fe4c 100644
--- a/nuttx/arch/arm/src/lpc17xx/lpc17_ethernet.c
+++ b/nuttx/arch/arm/src/lpc17xx/lpc17_ethernet.c
@@ -697,11 +697,32 @@ static int lpc17_txpoll(struct net_driver_s *dev)
 
   if (priv->lp_dev.d_len > 0)
     {
+      /* Look up the destination MAC address and add it to the Ethernet
+       * header.
+       */
+
+#ifdef CONFIG_NET_IPv4
+#ifdef CONFIG_NET_IPv6
+      if (IFF_IS_IPv4(priv->lp_dev.d_flags))
+#endif
+        {
+          arp_out(&priv->lp_dev);
+        }
+#endif /* CONFIG_NET_IPv4 */
+
+#ifdef CONFIG_NET_IPv6
+#ifdef CONFIG_NET_IPv4
+      else
+#endif
+        {
+          neighbor_out(&priv->lp_dev);
+        }
+#endif /* CONFIG_NET_IPv6 */
+
       /* Send this packet.  In this context, we know that there is space for
        * at least one more packet in the descriptor list.
        */
 
-      arp_out(&priv->lp_dev);
       lpc17_transmit(priv);
 
       /* Check if there is room in the device to hold another packet. If not,
diff --git a/nuttx/arch/arm/src/sam34/sam_emac.c b/nuttx/arch/arm/src/sam34/sam_emac.c
index 2f2932436..6a23f0b9d 100644
--- a/nuttx/arch/arm/src/sam34/sam_emac.c
+++ b/nuttx/arch/arm/src/sam34/sam_emac.c
@@ -830,9 +830,30 @@ static int sam_txpoll(struct net_driver_s *dev)
 
   if (priv->dev.d_len > 0)
     {
+      /* Look up the destination MAC address and add it to the Ethernet
+       * header.
+       */
+
+#ifdef CONFIG_NET_IPv4
+#ifdef CONFIG_NET_IPv6
+      if (IFF_IS_IPv4(priv->dev.d_flags))
+#endif
+        {
+          arp_out(&priv->dev);
+        }
+#endif /* CONFIG_NET_IPv4 */
+
+#ifdef CONFIG_NET_IPv6
+#ifdef CONFIG_NET_IPv4
+      else
+#endif
+        {
+          neighbor_out(&priv->dev);
+        }
+#endif /* CONFIG_NET_IPv6 */
+
       /* Send the packet */
 
-      arp_out(&priv->dev);
       sam_transmit(priv);
 
       /* Check if the there are any free TX descriptors.  We cannot perform
diff --git a/nuttx/arch/arm/src/sama5/sam_emaca.c b/nuttx/arch/arm/src/sama5/sam_emaca.c
index d9b8037ff..250772d8b 100644
--- a/nuttx/arch/arm/src/sama5/sam_emaca.c
+++ b/nuttx/arch/arm/src/sama5/sam_emaca.c
@@ -840,9 +840,30 @@ static int sam_txpoll(struct net_driver_s *dev)
 
   if (priv->dev.d_len > 0)
     {
+      /* Look up the destination MAC address and add it to the Ethernet
+       * header.
+       */
+
+#ifdef CONFIG_NET_IPv4
+#ifdef CONFIG_NET_IPv6
+      if (IFF_IS_IPv4(priv->dev.d_flags))
+#endif
+        {
+          arp_out(&priv->dev);
+        }
+#endif /* CONFIG_NET_IPv4 */
+
+#ifdef CONFIG_NET_IPv6
+#ifdef CONFIG_NET_IPv4
+      else
+#endif
+        {
+          neighbor_out(&priv->dev);
+        }
+#endif /* CONFIG_NET_IPv6 */
+
       /* Send the packet */
 
-      arp_out(&priv->dev);
       sam_transmit(priv);
 
       /* Check if the there are any free TX descriptors.  We cannot perform
diff --git a/nuttx/arch/arm/src/sama5/sam_emacb.c b/nuttx/arch/arm/src/sama5/sam_emacb.c
index 35ba12c90..b1c2fb2e9 100644
--- a/nuttx/arch/arm/src/sama5/sam_emacb.c
+++ b/nuttx/arch/arm/src/sama5/sam_emacb.c
@@ -1167,9 +1167,30 @@ static int sam_txpoll(struct net_driver_s *dev)
 
   if (priv->dev.d_len > 0)
     {
+      /* Look up the destination MAC address and add it to the Ethernet
+       * header.
+       */
+
+#ifdef CONFIG_NET_IPv4
+#ifdef CONFIG_NET_IPv6
+      if (IFF_IS_IPv4(priv->dev.d_flags))
+#endif
+        {
+          arp_out(&priv->dev);
+        }
+#endif /* CONFIG_NET_IPv4 */
+
+#ifdef CONFIG_NET_IPv6
+#ifdef CONFIG_NET_IPv4
+      else
+#endif
+        {
+          neighbor_out(&priv->dev);
+        }
+#endif /* CONFIG_NET_IPv6 */
+
       /* Send the packet */
 
-      arp_out(&priv->dev);
       sam_transmit(priv);
 
       /* Check if the there are any free TX descriptors.  We cannot perform
diff --git a/nuttx/arch/arm/src/sama5/sam_gmac.c b/nuttx/arch/arm/src/sama5/sam_gmac.c
index 4a86bf4c1..1baa4283c 100644
--- a/nuttx/arch/arm/src/sama5/sam_gmac.c
+++ b/nuttx/arch/arm/src/sama5/sam_gmac.c
@@ -772,9 +772,30 @@ static int sam_txpoll(struct net_driver_s *dev)
 
   if (priv->dev.d_len > 0)
     {
+      /* Look up the destination MAC address and add it to the Ethernet
+       * header.
+       */
+
+#ifdef CONFIG_NET_IPv4
+#ifdef CONFIG_NET_IPv6
+      if (IFF_IS_IPv4(priv->dev.d_flags))
+#endif
+        {
+          arp_out(&priv->dev);
+        }
+#endif /* CONFIG_NET_IPv4 */
+
+#ifdef CONFIG_NET_IPv6
+#ifdef CONFIG_NET_IPv4
+      else
+#endif
+        {
+          neighbor_out(&priv->dev);
+        }
+#endif /* CONFIG_NET_IPv6 */
+
       /* Send the packet */
 
-      arp_out(&priv->dev);
       sam_transmit(priv);
 
       /* Check if the there are any free TX descriptors.  We cannot perform
diff --git a/nuttx/arch/arm/src/stm32/stm32_eth.c b/nuttx/arch/arm/src/stm32/stm32_eth.c
index 16d00614a..4dc1c8105 100644
--- a/nuttx/arch/arm/src/stm32/stm32_eth.c
+++ b/nuttx/arch/arm/src/stm32/stm32_eth.c
@@ -1175,9 +1175,30 @@ static int stm32_txpoll(struct net_driver_s *dev)
 
   if (priv->dev.d_len > 0)
     {
+      /* Look up the destination MAC address and add it to the Ethernet
+       * header.
+       */
+
+#ifdef CONFIG_NET_IPv4
+#ifdef CONFIG_NET_IPv6
+      if (IFF_IS_IPv4(priv->dev.d_flags))
+#endif
+        {
+          arp_out(&priv->dev);
+        }
+#endif /* CONFIG_NET_IPv4 */
+
+#ifdef CONFIG_NET_IPv6
+#ifdef CONFIG_NET_IPv4
+      else
+#endif
+        {
+          neighbor_out(&priv->dev);
+        }
+#endif /* CONFIG_NET_IPv6 */
+
       /* Send the packet */
 
-      arp_out(&priv->dev);
       stm32_transmit(priv);
       DEBUGASSERT(dev->d_len == 0 && dev->d_buf == NULL);
 
diff --git a/nuttx/arch/arm/src/tiva/lm3s_ethernet.c b/nuttx/arch/arm/src/tiva/lm3s_ethernet.c
index 89fad3101..87334ab92 100644
--- a/nuttx/arch/arm/src/tiva/lm3s_ethernet.c
+++ b/nuttx/arch/arm/src/tiva/lm3s_ethernet.c
@@ -620,12 +620,34 @@ static int tiva_txpoll(struct net_driver_s *dev)
   nllvdbg("Poll result: d_len=%d\n", priv->ld_dev.d_len);
   if (priv->ld_dev.d_len > 0)
     {
+      DEBUGASSERT((tiva_ethin(priv, TIVA_MAC_TR_OFFSET) & MAC_TR_NEWTX) == 0)
+
+      /* Look up the destination MAC address and add it to the Ethernet
+       * header.
+       */
+
+#ifdef CONFIG_NET_IPv4
+#ifdef CONFIG_NET_IPv6
+      if (IFF_IS_IPv4(priv->ld_dev.d_flags))
+#endif
+        {
+          arp_out(&priv->ld_dev);
+        }
+#endif /* CONFIG_NET_IPv4 */
+
+#ifdef CONFIG_NET_IPv6
+#ifdef CONFIG_NET_IPv4
+      else
+#endif
+        {
+          neighbor_out(&priv->ld_dev);
+        }
+#endif /* CONFIG_NET_IPv6 */
+
       /* Send the packet.  tiva_transmit() will return zero if the
        * packet was successfully handled.
        */
 
-      DEBUGASSERT((tiva_ethin(priv, TIVA_MAC_TR_OFFSET) & MAC_TR_NEWTX) == 0)
-      arp_out(&priv->ld_dev);
       ret = tiva_transmit(priv);
     }
 
diff --git a/nuttx/arch/arm/src/tiva/tm4c_ethernet.c b/nuttx/arch/arm/src/tiva/tm4c_ethernet.c
index 5910b0953..93d6df9cb 100644
--- a/nuttx/arch/arm/src/tiva/tm4c_ethernet.c
+++ b/nuttx/arch/arm/src/tiva/tm4c_ethernet.c
@@ -1251,9 +1251,30 @@ static int tiva_txpoll(struct net_driver_s *dev)
 
   if (priv->dev.d_len > 0)
     {
+      /* Look up the destination MAC address and add it to the Ethernet
+       * header.
+       */
+
+#ifdef CONFIG_NET_IPv4
+#ifdef CONFIG_NET_IPv6
+      if (IFF_IS_IPv4(priv->dev.d_flags))
+#endif
+        {
+          arp_out(&priv->dev);
+        }
+#endif /* CONFIG_NET_IPv4 */
+
+#ifdef CONFIG_NET_IPv6
+#ifdef CONFIG_NET_IPv4
+      else
+#endif
+        {
+          neighbor_out(&priv->dev);
+        }
+#endif /* CONFIG_NET_IPv6 */
+
       /* Send the packet */
 
-      arp_out(&priv->dev);
       tiva_transmit(priv);
       DEBUGASSERT(dev->d_len == 0 && dev->d_buf == NULL);
 
diff --git a/nuttx/arch/hc/src/m9s12/m9s12_ethernet.c b/nuttx/arch/hc/src/m9s12/m9s12_ethernet.c
index 782e8f151..94270dcdd 100644
--- a/nuttx/arch/hc/src/m9s12/m9s12_ethernet.c
+++ b/nuttx/arch/hc/src/m9s12/m9s12_ethernet.c
@@ -216,7 +216,30 @@ static int emac_txpoll(struct net_driver_s *dev)
 
   if (priv->d_dev.d_len > 0)
     {
-      arp_out(&priv->d_dev);
+      /* Look up the destination MAC address and add it to the Ethernet
+       * header.
+       */
+
+#ifdef CONFIG_NET_IPv4
+#ifdef CONFIG_NET_IPv6
+      if (IFF_IS_IPv4(priv->d_dev.d_flags))
+#endif
+        {
+          arp_out(&priv->d_dev);
+        }
+#endif /* CONFIG_NET_IPv4 */
+
+#ifdef CONFIG_NET_IPv6
+#ifdef CONFIG_NET_IPv4
+      else
+#endif
+        {
+          neighbor_out(&priv->d_dev);
+        }
+#endif /* CONFIG_NET_IPv6 */
+
+      /* Send the packet */
+
       emac_transmit(priv);
 
       /* Check if there is room in the device to hold another packet. If not,
diff --git a/nuttx/arch/mips/src/pic32mx/pic32mx-ethernet.c b/nuttx/arch/mips/src/pic32mx/pic32mx-ethernet.c
index d78a7c225..0743a7676 100644
--- a/nuttx/arch/mips/src/pic32mx/pic32mx-ethernet.c
+++ b/nuttx/arch/mips/src/pic32mx/pic32mx-ethernet.c
@@ -1152,11 +1152,32 @@ static int pic32mx_txpoll(struct net_driver_s *dev)
 
   if (priv->pd_dev.d_len > 0)
     {
+      /* Look up the destination MAC address and add it to the Ethernet
+       * header.
+       */
+
+#ifdef CONFIG_NET_IPv4
+#ifdef CONFIG_NET_IPv6
+      if (IFF_IS_IPv4(priv->pd_dev.d_flags))
+#endif
+        {
+          arp_out(&priv->pd_dev);
+        }
+#endif /* CONFIG_NET_IPv4 */
+
+#ifdef CONFIG_NET_IPv6
+#ifdef CONFIG_NET_IPv4
+      else
+#endif
+        {
+          neighbor_out(&priv->pd_dev);
+        }
+#endif /* CONFIG_NET_IPv6 */
+
       /* Send this packet.  In this context, we know that there is space for
        * at least one more packet in the descriptor list.
        */
 
-      arp_out(&priv->pd_dev);
       pic32mx_transmit(priv);
 
       /* Check if the next TX descriptor is available. If not, return a
diff --git a/nuttx/arch/sim/src/up_netdriver.c b/nuttx/arch/sim/src/up_netdriver.c
index 036d51e2b..383bf46c1 100644
--- a/nuttx/arch/sim/src/up_netdriver.c
+++ b/nuttx/arch/sim/src/up_netdriver.c
@@ -126,7 +126,30 @@ static int sim_txpoll(struct net_driver_s *dev)
 
   if (g_sim_dev.d_len > 0)
     {
-      arp_out(&g_sim_dev);
+      /* Look up the destination MAC address and add it to the Ethernet
+       * header.
+       */
+
+#ifdef CONFIG_NET_IPv4
+#ifdef CONFIG_NET_IPv6
+      if (IFF_IS_IPv4(&g_sim_dev))
+#endif
+        {
+          arp_out(&g_sim_dev);
+        }
+#endif /* CONFIG_NET_IPv4 */
+
+#ifdef CONFIG_NET_IPv6
+#ifdef CONFIG_NET_IPv4
+      else
+#endif
+        {
+          neighbor_out(&g_sim_dev);
+        }
+#endif /* CONFIG_NET_IPv6 */
+
+      /* Send the packet */
+
       netdev_send(g_sim_dev.d_buf, g_sim_dev.d_len);
     }
 
diff --git a/nuttx/arch/z80/src/ez80/ez80_emac.c b/nuttx/arch/z80/src/ez80/ez80_emac.c
index 7ea5b47ac..f654fc2d5 100644
--- a/nuttx/arch/z80/src/ez80/ez80_emac.c
+++ b/nuttx/arch/z80/src/ez80/ez80_emac.c
@@ -1085,11 +1085,32 @@ static int ez80emac_txpoll(struct net_driver_s *dev)
   nvdbg("Poll result: d_len=%d\n", priv->dev.d_len);
   if (priv->dev.d_len > 0)
     {
+      /* Look up the destination MAC address and add it to the Ethernet
+       * header.
+       */
+
+#ifdef CONFIG_NET_IPv4
+#ifdef CONFIG_NET_IPv6
+      if (IFF_IS_IPv4(priv->dev.d_flags))
+#endif
+        {
+          arp_out(&priv->dev);
+        }
+#endif /* CONFIG_NET_IPv4 */
+
+#ifdef CONFIG_NET_IPv6
+#ifdef CONFIG_NET_IPv4
+      else
+#endif
+        {
+          neighbor_out(&priv->dev);
+        }
+#endif /* CONFIG_NET_IPv6 */
+
       /* Send the packet.  ez80emac_transmit() will return zero if the
        * packet was successfully handled.
        */
 
-      arp_out(&priv->dev);
       ret = ez80emac_transmit(priv);
     }
 
diff --git a/nuttx/drivers/net/cs89x0.c b/nuttx/drivers/net/cs89x0.c
index 47d92f782..bb0a43304 100644
--- a/nuttx/drivers/net/cs89x0.c
+++ b/nuttx/drivers/net/cs89x0.c
@@ -341,7 +341,30 @@ static int cs89x0_txpoll(struct net_driver_s *dev)
 
   if (cs89x0->cs_dev.d_len > 0)
     {
-      arp_out(&cs89x0->cs_dev);
+      /* Look up the destination MAC address and add it to the Ethernet
+       * header.
+       */
+
+#ifdef CONFIG_NET_IPv4
+#ifdef CONFIG_NET_IPv6
+      if (IFF_IS_IPv4(cs89x0->cs_dev.d_flags))
+#endif
+        {
+          arp_out(&cs89x0->cs_dev);
+        }
+#endif /* CONFIG_NET_IPv4 */
+
+#ifdef CONFIG_NET_IPv6
+#ifdef CONFIG_NET_IPv4
+      else
+#endif
+        {
+          neighbor_out(&cs89x0->cs_dev);
+        }
+#endif /* CONFIG_NET_IPv6 */
+
+      /* Send the packet */
+
       cs89x0_transmit(cs89x0);
 
       /* Check if there is room in the CS89x0 to hold another packet. If not,
diff --git a/nuttx/drivers/net/dm90x0.c b/nuttx/drivers/net/dm90x0.c
index c7f7d8b69..32129f50f 100644
--- a/nuttx/drivers/net/dm90x0.c
+++ b/nuttx/drivers/net/dm90x0.c
@@ -853,7 +853,30 @@ static int dm9x_txpoll(struct net_driver_s *dev)
 
   if (dm9x->dm_dev.d_len > 0)
     {
-      arp_out(&dm9x->dm_dev);
+      /* Look up the destination MAC address and add it to the Ethernet
+       * header.
+       */
+
+#ifdef CONFIG_NET_IPv4
+#ifdef CONFIG_NET_IPv6
+      if (IFF_IS_IPv4(dm9x->dm_dev.d_flags))
+#endif
+        {
+          arp_out(&dm9x->dm_dev);
+        }
+#endif /* CONFIG_NET_IPv4 */
+
+#ifdef CONFIG_NET_IPv6
+#ifdef CONFIG_NET_IPv4
+      else
+#endif
+        {
+          neighbor_out(&dm9x->dm_dev);
+        }
+#endif /* CONFIG_NET_IPv6 */
+
+      /* Send the packet */
+
       dm9x_transmit(dm9x);
 
       /* Check if there is room in the DM90x0 to hold another packet.  In 100M mode,
diff --git a/nuttx/drivers/net/e1000.c b/nuttx/drivers/net/e1000.c
index 9fc546ec9..b122b75d9 100644
--- a/nuttx/drivers/net/e1000.c
+++ b/nuttx/drivers/net/e1000.c
@@ -492,7 +492,30 @@ static int e1000_txpoll(struct net_driver_s *dev)
 
   if (e1000->netdev.d_len > 0)
     {
-      arp_out(&e1000->netdev);
+      /* Look up the destination MAC address and add it to the Ethernet
+       * header.
+       */
+
+#ifdef CONFIG_NET_IPv4
+#ifdef CONFIG_NET_IPv6
+      if (IFF_IS_IPv4(e1000->netdev.d_flags))
+#endif
+        {
+          arp_out(&e1000->netdev);
+        }
+#endif /* CONFIG_NET_IPv4 */
+
+#ifdef CONFIG_NET_IPv6
+#ifdef CONFIG_NET_IPv4
+      else
+#endif
+        {
+          neighbor_out(&e1000->netdev);
+        }
+#endif /* CONFIG_NET_IPv6 */
+
+      /* Send the packet */
+
       e1000_transmit(e1000);
 
       /* Check if there is room in the device to hold another packet. If not,
diff --git a/nuttx/drivers/net/enc28j60.c b/nuttx/drivers/net/enc28j60.c
index 18ec1e449..78fcaf283 100644
--- a/nuttx/drivers/net/enc28j60.c
+++ b/nuttx/drivers/net/enc28j60.c
@@ -1204,7 +1204,30 @@ static int enc_txpoll(struct net_driver_s *dev)
   nllvdbg("Poll result: d_len=%d\n", priv->dev.d_len);
   if (priv->dev.d_len > 0)
     {
-      arp_out(&priv->dev);
+      /* Look up the destination MAC address and add it to the Ethernet
+       * header.
+       */
+
+#ifdef CONFIG_NET_IPv4
+#ifdef CONFIG_NET_IPv6
+      if (IFF_IS_IPv4(priv->dev.d_flags))
+#endif
+        {
+          arp_out(&priv->dev);
+        }
+#endif /* CONFIG_NET_IPv4 */
+
+#ifdef CONFIG_NET_IPv6
+#ifdef CONFIG_NET_IPv4
+      else
+#endif
+        {
+          neighbor_out(&priv->dev);
+        }
+#endif /* CONFIG_NET_IPv6 */
+
+      /* Send the packet */
+
       enc_transmit(priv);
 
       /* Stop the poll now because we can queue only one packet */
diff --git a/nuttx/drivers/net/encx24j600.c b/nuttx/drivers/net/encx24j600.c
index 5ed7c2dea..ca47a0173 100644
--- a/nuttx/drivers/net/encx24j600.c
+++ b/nuttx/drivers/net/encx24j600.c
@@ -1220,7 +1220,29 @@ static int enc_txpoll(struct net_driver_s *dev)
 
   if (priv->dev.d_len > 0)
     {
-      arp_out(&priv->dev);
+      /* Look up the destination MAC address and add it to the Ethernet
+       * header.
+       */
+
+#ifdef CONFIG_NET_IPv4
+#ifdef CONFIG_NET_IPv6
+      if (IFF_IS_IPv4(priv->dev.d_flags))
+#endif
+        {
+          arp_out(&priv->dev);
+        }
+#endif /* CONFIG_NET_IPv4 */
+
+#ifdef CONFIG_NET_IPv6
+#ifdef CONFIG_NET_IPv4
+      else
+#endif
+        {
+          neighbor_out(&priv->dev);
+        }
+#endif /* CONFIG_NET_IPv6 */
+
+      /* Send the packet */
 
       ret = enc_txenqueue(priv);
     }
diff --git a/nuttx/drivers/net/skeleton.c b/nuttx/drivers/net/skeleton.c
index a94234730..8eeff3ec9 100644
--- a/nuttx/drivers/net/skeleton.c
+++ b/nuttx/drivers/net/skeleton.c
@@ -248,7 +248,30 @@ static int skel_txpoll(struct net_driver_s *dev)
 
   if (skel->sk_dev.d_len > 0)
     {
-      arp_out(&skel->sk_dev);
+      /* Look up the destination MAC address and add it to the Ethernet
+       * header.
+       */
+
+#ifdef CONFIG_NET_IPv4
+#ifdef CONFIG_NET_IPv6
+      if (IFF_IS_IPv4(skel->sk_dev.d_flags))
+#endif
+        {
+          arp_out(&skel->sk_dev);
+        }
+#endif /* CONFIG_NET_IPv4 */
+
+#ifdef CONFIG_NET_IPv6
+#ifdef CONFIG_NET_IPv4
+      else
+#endif
+        {
+          neighbor_out(&skel->sk_dev);
+        }
+#endif /* CONFIG_NET_IPv6 */
+
+      /* Send the packet */
+
       skel_transmit(skel);
 
       /* Check if there is room in the device to hold another packet. If not,
diff --git a/nuttx/drivers/net/vnet.c b/nuttx/drivers/net/vnet.c
index 3def6e8d1..6a61b7964 100644
--- a/nuttx/drivers/net/vnet.c
+++ b/nuttx/drivers/net/vnet.c
@@ -243,7 +243,30 @@ static int vnet_txpoll(struct net_driver_s *dev)
 
   if (vnet->sk_dev.d_len > 0)
     {
-      arp_out(&vnet->sk_dev);
+      /* Look up the destination MAC address and add it to the Ethernet
+       * header.
+       */
+
+#ifdef CONFIG_NET_IPv4
+#ifdef CONFIG_NET_IPv6
+      if (IFF_IS_IPv4(vnet->sk_dev.d_flags))
+#endif
+        {
+          arp_out(&vnet->sk_dev);
+        }
+#endif /* CONFIG_NET_IPv4 */
+
+#ifdef CONFIG_NET_IPv6
+#ifdef CONFIG_NET_IPv4
+      else
+#endif
+        {
+          neighbor_out(&vnet->sk_dev);
+        }
+#endif /* CONFIG_NET_IPv6 */
+
+      /* Send the packet */
+
       vnet_transmit(vnet);
 
       /* Check if there is room in the device to hold another packet. If not,