diff --git a/grub-core/net/drivers/efi/efinet.c b/grub-core/net/drivers/efi/efinet.c
index fc90415f2..2d3b00f0e 100644
--- a/grub-core/net/drivers/efi/efinet.c
+++ b/grub-core/net/drivers/efi/efinet.c
@@ -23,6 +23,7 @@
 #include <grub/efi/api.h>
 #include <grub/efi/efi.h>
 #include <grub/i18n.h>
+#include <grub/net/netbuff.h>
 
 GRUB_MOD_LICENSE ("GPLv3+");
 
@@ -324,6 +325,221 @@ grub_efinet_findcards (void)
   grub_free (handles);
 }
 
+static struct grub_net_buff *
+grub_efinet_create_dhcp_ack_from_device_path (grub_efi_device_path_t *dp, int *use_ipv6)
+{
+  grub_efi_uint16_t uri_len;
+  grub_efi_device_path_t *ldp, *ddp;
+  grub_efi_uri_device_path_t *uri_dp;
+  struct grub_net_buff *nb;
+  grub_err_t err;
+
+  ddp = grub_efi_duplicate_device_path (dp);
+  ldp = grub_efi_find_last_device_path (ddp);
+
+  if (GRUB_EFI_DEVICE_PATH_TYPE (ldp) != GRUB_EFI_MESSAGING_DEVICE_PATH_TYPE
+      || GRUB_EFI_DEVICE_PATH_SUBTYPE (ldp) != GRUB_EFI_URI_DEVICE_PATH_SUBTYPE)
+    {
+      grub_free (ddp);
+      return NULL;
+    }
+
+  uri_len = GRUB_EFI_DEVICE_PATH_LENGTH (ldp) > 4 ? GRUB_EFI_DEVICE_PATH_LENGTH (ldp) - 4  : 0;
+
+  if (!uri_len)
+    {
+      grub_free (ddp);
+      return NULL;
+    }
+
+  uri_dp = (grub_efi_uri_device_path_t *) ldp;
+
+  ldp->type = GRUB_EFI_END_DEVICE_PATH_TYPE;
+  ldp->subtype = GRUB_EFI_END_ENTIRE_DEVICE_PATH_SUBTYPE;
+  ldp->length = sizeof (*ldp);
+
+  ldp = grub_efi_find_last_device_path (ddp);
+
+  if (GRUB_EFI_DEVICE_PATH_TYPE (ldp) != GRUB_EFI_MESSAGING_DEVICE_PATH_TYPE
+      || (GRUB_EFI_DEVICE_PATH_SUBTYPE (ldp) != GRUB_EFI_IPV4_DEVICE_PATH_SUBTYPE
+          && GRUB_EFI_DEVICE_PATH_SUBTYPE (ldp) != GRUB_EFI_IPV6_DEVICE_PATH_SUBTYPE))
+    {
+      grub_free (ddp);
+      return NULL;
+    }
+
+  nb = grub_netbuff_alloc (512);
+  if (!nb)
+    return NULL;
+
+  if (GRUB_EFI_DEVICE_PATH_SUBTYPE (ldp) == GRUB_EFI_IPV4_DEVICE_PATH_SUBTYPE)
+    {
+      grub_efi_ipv4_device_path_t *ipv4 = (grub_efi_ipv4_device_path_t *) ldp;
+      struct grub_net_bootp_packet *bp;
+      grub_uint8_t *ptr;
+
+      bp = (struct grub_net_bootp_packet *) nb->tail;
+      err = grub_netbuff_put (nb, sizeof (*bp) + 4);
+      if (err)
+	{
+	  grub_free (ddp);
+	  grub_netbuff_free (nb);
+	  return NULL;
+	}
+
+      if (sizeof(bp->boot_file) < uri_len)
+	{
+	  grub_free (ddp);
+	  grub_netbuff_free (nb);
+	  return NULL;
+	}
+      grub_memcpy (bp->boot_file, uri_dp->uri, uri_len);
+      grub_memcpy (&bp->your_ip, ipv4->local_ip_address, sizeof (bp->your_ip));
+      grub_memcpy (&bp->server_ip, ipv4->remote_ip_address, sizeof (bp->server_ip));
+
+      bp->vendor[0] = GRUB_NET_BOOTP_RFC1048_MAGIC_0;
+      bp->vendor[1] = GRUB_NET_BOOTP_RFC1048_MAGIC_1;
+      bp->vendor[2] = GRUB_NET_BOOTP_RFC1048_MAGIC_2;
+      bp->vendor[3] = GRUB_NET_BOOTP_RFC1048_MAGIC_3;
+
+      ptr = nb->tail;
+      err = grub_netbuff_put (nb, sizeof (ipv4->subnet_mask) + 2);
+      if (err)
+	{
+	  grub_free (ddp);
+	  grub_netbuff_free (nb);
+	  return NULL;
+	}
+      *ptr++ = GRUB_NET_BOOTP_NETMASK;
+      *ptr++ = sizeof (ipv4->subnet_mask);
+      grub_memcpy (ptr, ipv4->subnet_mask, sizeof (ipv4->subnet_mask));
+
+      ptr = nb->tail;
+      err = grub_netbuff_put (nb, sizeof (ipv4->gateway_ip_address) + 2);
+      if (err)
+	{
+	  grub_free (ddp);
+	  grub_netbuff_free (nb);
+	  return NULL;
+	}
+      *ptr++ = GRUB_NET_BOOTP_ROUTER;
+      *ptr++ = sizeof (ipv4->gateway_ip_address);
+      grub_memcpy (ptr, ipv4->gateway_ip_address, sizeof (ipv4->gateway_ip_address));
+
+      ptr = nb->tail;
+      err = grub_netbuff_put (nb, sizeof ("HTTPClient") + 1);
+      if (err)
+	{
+	  grub_free (ddp);
+	  grub_netbuff_free (nb);
+	  return NULL;
+	}
+      *ptr++ = GRUB_NET_BOOTP_VENDOR_CLASS_IDENTIFIER;
+      *ptr++ = sizeof ("HTTPClient") - 1;
+      grub_memcpy (ptr, "HTTPClient", sizeof ("HTTPClient") - 1);
+
+      ptr = nb->tail;
+      err = grub_netbuff_put (nb, 1);
+      if (err)
+	{
+	  grub_free (ddp);
+	  grub_netbuff_free (nb);
+	  return NULL;
+	}
+      *ptr = GRUB_NET_BOOTP_END;
+      *use_ipv6 = 0;
+
+      ldp->type = GRUB_EFI_END_DEVICE_PATH_TYPE;
+      ldp->subtype = GRUB_EFI_END_ENTIRE_DEVICE_PATH_SUBTYPE;
+      ldp->length = sizeof (*ldp);
+      ldp = grub_efi_find_last_device_path (ddp);
+
+      if (GRUB_EFI_DEVICE_PATH_SUBTYPE (ldp) ==  GRUB_EFI_MAC_ADDRESS_DEVICE_PATH_SUBTYPE)
+	{
+	  grub_efi_mac_address_device_path_t *mac = (grub_efi_mac_address_device_path_t *) ldp;
+	  bp->hw_type = mac->if_type;
+	  bp->hw_len = sizeof (bp->mac_addr);
+	  grub_memcpy (bp->mac_addr, mac->mac_address, bp->hw_len);
+	}
+    }
+  else
+    {
+      grub_efi_ipv6_device_path_t *ipv6 = (grub_efi_ipv6_device_path_t *) ldp;
+
+      struct grub_net_dhcp6_packet *d6p;
+      struct grub_net_dhcp6_option *opt;
+      struct grub_net_dhcp6_option_iana *iana;
+      struct grub_net_dhcp6_option_iaaddr *iaaddr;
+
+      d6p = (struct grub_net_dhcp6_packet *)nb->tail;
+      err = grub_netbuff_put (nb, sizeof(*d6p));
+      if (err)
+	{
+	  grub_free (ddp);
+	  grub_netbuff_free (nb);
+	  return NULL;
+	}
+      d6p->message_type = GRUB_NET_DHCP6_REPLY;
+
+      opt = (struct grub_net_dhcp6_option *)nb->tail;
+      err = grub_netbuff_put (nb, sizeof(*opt));
+      if (err)
+	{
+	  grub_free (ddp);
+	  grub_netbuff_free (nb);
+	  return NULL;
+	}
+      opt->code = grub_cpu_to_be16_compile_time (GRUB_NET_DHCP6_OPTION_IA_NA);
+      opt->len = grub_cpu_to_be16_compile_time (sizeof(*iana) + sizeof(*opt) + sizeof(*iaaddr));
+
+      err = grub_netbuff_put (nb, sizeof(*iana));
+      if (err)
+	{
+	  grub_free (ddp);
+	  grub_netbuff_free (nb);
+	  return NULL;
+	}
+
+      opt = (struct grub_net_dhcp6_option *)nb->tail;
+      err = grub_netbuff_put (nb, sizeof(*opt));
+      if (err)
+	{
+	  grub_free (ddp);
+	  grub_netbuff_free (nb);
+	  return NULL;
+	}
+      opt->code = grub_cpu_to_be16_compile_time (GRUB_NET_DHCP6_OPTION_IAADDR);
+      opt->len = grub_cpu_to_be16_compile_time (sizeof (*iaaddr));
+
+      iaaddr = (struct grub_net_dhcp6_option_iaaddr *)nb->tail;
+      err = grub_netbuff_put (nb, sizeof(*iaaddr));
+      if (err)
+	{
+	  grub_free (ddp);
+	  grub_netbuff_free (nb);
+	  return NULL;
+	}
+      grub_memcpy (iaaddr->addr, ipv6->local_ip_address, sizeof(ipv6->local_ip_address));
+
+      opt = (struct grub_net_dhcp6_option *)nb->tail;
+      err = grub_netbuff_put (nb, sizeof(*opt) + uri_len);
+      if (err)
+	{
+	  grub_free (ddp);
+	  grub_netbuff_free (nb);
+	  return NULL;
+	}
+      opt->code = grub_cpu_to_be16_compile_time (GRUB_NET_DHCP6_OPTION_BOOTFILE_URL);
+      opt->len = grub_cpu_to_be16 (uri_len);
+      grub_memcpy (opt->data, uri_dp->uri, uri_len);
+
+      *use_ipv6 = 1;
+    }
+
+  grub_free (ddp);
+  return nb;
+}
+
 static void
 grub_efi_net_config_real (grub_efi_handle_t hnd, char **device,
 			  char **path)
@@ -340,6 +556,11 @@ grub_efi_net_config_real (grub_efi_handle_t hnd, char **device,
     grub_efi_device_path_t *cdp;
     struct grub_efi_pxe *pxe;
     struct grub_efi_pxe_mode *pxe_mode;
+    grub_uint8_t *packet_buf;
+    grub_size_t packet_bufsz ;
+    int ipv6;
+    struct grub_net_buff *nb = NULL;
+
     if (card->driver != &efidriver)
       continue;
     cdp = grub_efi_get_device_path (card->efi_handle);
@@ -359,11 +580,21 @@ grub_efi_net_config_real (grub_efi_handle_t hnd, char **device,
 	ldp = grub_efi_find_last_device_path (dp);
 	if (GRUB_EFI_DEVICE_PATH_TYPE (ldp) != GRUB_EFI_MESSAGING_DEVICE_PATH_TYPE
 	    || (GRUB_EFI_DEVICE_PATH_SUBTYPE (ldp) != GRUB_EFI_IPV4_DEVICE_PATH_SUBTYPE
-		&& GRUB_EFI_DEVICE_PATH_SUBTYPE (ldp) != GRUB_EFI_IPV6_DEVICE_PATH_SUBTYPE))
+		&& GRUB_EFI_DEVICE_PATH_SUBTYPE (ldp) != GRUB_EFI_IPV6_DEVICE_PATH_SUBTYPE
+		&& GRUB_EFI_DEVICE_PATH_SUBTYPE (ldp) != GRUB_EFI_URI_DEVICE_PATH_SUBTYPE))
 	  continue;
 	dup_dp = grub_efi_duplicate_device_path (dp);
 	if (!dup_dp)
 	  continue;
+
+	if (GRUB_EFI_DEVICE_PATH_SUBTYPE (ldp) == GRUB_EFI_URI_DEVICE_PATH_SUBTYPE)
+	  {
+	    dup_ldp = grub_efi_find_last_device_path (dup_dp);
+	    dup_ldp->type = GRUB_EFI_END_DEVICE_PATH_TYPE;
+	    dup_ldp->subtype = GRUB_EFI_END_ENTIRE_DEVICE_PATH_SUBTYPE;
+	    dup_ldp->length = sizeof (*dup_ldp);
+	  }
+
 	dup_ldp = grub_efi_find_last_device_path (dup_dp);
 	dup_ldp->type = GRUB_EFI_END_DEVICE_PATH_TYPE;
 	dup_ldp->subtype = GRUB_EFI_END_ENTIRE_DEVICE_PATH_SUBTYPE;
@@ -375,16 +606,31 @@ grub_efi_net_config_real (grub_efi_handle_t hnd, char **device,
       }
     pxe = grub_efi_open_protocol (hnd, &pxe_io_guid,
 				  GRUB_EFI_OPEN_PROTOCOL_GET_PROTOCOL);
-    if (! pxe)
-      continue;
-    pxe_mode = pxe->mode;
+    if (!pxe)
+      {
+	nb = grub_efinet_create_dhcp_ack_from_device_path (dp, &ipv6);
+	if (!nb)
+	  {
+	    grub_print_error ();
+	    continue;
+	  }
+	packet_buf = nb->head;
+	packet_bufsz = nb->tail - nb->head;
+      }
+    else
+      {
+	pxe_mode = pxe->mode;
+	packet_buf = (grub_uint8_t *) &pxe_mode->dhcp_ack;
+	packet_bufsz = sizeof (pxe_mode->dhcp_ack);
+	ipv6 = pxe_mode->using_ipv6;
+      }
 
-    if (pxe_mode->using_ipv6)
+    if (ipv6)
       {
 	grub_net_configure_by_dhcpv6_reply (card->name, card, 0,
 					    (struct grub_net_dhcp6_packet *)
-					    &pxe_mode->dhcp_ack,
-					    sizeof (pxe_mode->dhcp_ack),
+					    packet_buf,
+					    packet_bufsz,
 					    1, device, path);
 	if (grub_errno)
 	  grub_print_error ();
@@ -393,10 +639,14 @@ grub_efi_net_config_real (grub_efi_handle_t hnd, char **device,
       {
 	grub_net_configure_by_dhcp_ack (card->name, card, 0,
 					(struct grub_net_bootp_packet *)
-					&pxe_mode->dhcp_ack,
-					sizeof (pxe_mode->dhcp_ack),
+					packet_buf,
+					packet_bufsz,
 					1, device, path);
       }
+
+    if (nb)
+      grub_netbuff_free (nb);
+
     return;
   }
 }
diff --git a/include/grub/efi/api.h b/include/grub/efi/api.h
index 50ab8e844..4b4652ca5 100644
--- a/include/grub/efi/api.h
+++ b/include/grub/efi/api.h
@@ -849,6 +849,8 @@ struct grub_efi_ipv4_device_path
   grub_efi_uint16_t remote_port;
   grub_efi_uint16_t protocol;
   grub_efi_uint8_t static_ip_address;
+  grub_efi_ipv4_address_t gateway_ip_address;
+  grub_efi_ipv4_address_t subnet_mask;
 } GRUB_PACKED;
 typedef struct grub_efi_ipv4_device_path grub_efi_ipv4_device_path_t;
 
@@ -903,6 +905,15 @@ struct grub_efi_sata_device_path
 } GRUB_PACKED;
 typedef struct grub_efi_sata_device_path grub_efi_sata_device_path_t;
 
+#define GRUB_EFI_URI_DEVICE_PATH_SUBTYPE		24
+
+struct grub_efi_uri_device_path
+{
+  grub_efi_device_path_t header;
+  grub_efi_uint8_t uri[0];
+} GRUB_PACKED;
+typedef struct grub_efi_uri_device_path grub_efi_uri_device_path_t;
+
 #define GRUB_EFI_VENDOR_MESSAGING_DEVICE_PATH_SUBTYPE	10
 
 /* Media Device Path.  */