diff --git a/.gitignore b/.gitignore
index eb769f144c..aeaf847543 100644
--- a/.gitignore
+++ b/.gitignore
@@ -104,3 +104,6 @@ __pycache__
 # pylint files
 /pylint.cur
 /pylint.out/
+
+/lib/lwip/lwip-external
+lib/lwip/apps/ping/ping.c
diff --git a/include/net.h b/include/net.h
index 1a99009959..8622983597 100644
--- a/include/net.h
+++ b/include/net.h
@@ -561,7 +561,7 @@ extern int		net_restart_wrap;	/* Tried all network devices */
 
 enum proto_t {
 	BOOTP, RARP, ARP, TFTPGET, DHCP, PING, PING6, DNS, NFS, CDP, NETCONS,
-	SNTP, TFTPSRV, TFTPPUT, LINKLOCAL, FASTBOOT, WOL, UDP, NCSI, WGET
+	SNTP, TFTPSRV, TFTPPUT, LINKLOCAL, FASTBOOT, WOL, UDP, NCSI, WGET, LWIP
 };
 
 extern char	net_boot_file_name[1024];/* Boot File name */
diff --git a/lib/Kconfig b/lib/Kconfig
index 3c5a4ab386..7485a1f3bf 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -1031,3 +1031,5 @@ menu "FWU Multi Bank Updates"
 source lib/fwu_updates/Kconfig
 
 endmenu
+
+source lib/lwip/Kconfig
diff --git a/lib/Makefile b/lib/Makefile
index d77b33e7f4..3b80a41187 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -91,6 +91,8 @@ obj-$(CONFIG_LIBAVB) += libavb/
 obj-$(CONFIG_$(SPL_TPL_)OF_LIBFDT) += libfdt/
 obj-$(CONFIG_$(SPL_TPL_)OF_REAL) += fdtdec_common.o fdtdec.o
 
+obj-y += lwip/
+
 ifdef CONFIG_SPL_BUILD
 obj-$(CONFIG_SPL_YMODEM_SUPPORT) += crc16-ccitt.o
 obj-$(CONFIG_$(SPL_TPL_)HASH) += crc16-ccitt.o
diff --git a/lib/lwip/Kconfig b/lib/lwip/Kconfig
new file mode 100644
index 0000000000..dd0b3d4671
--- /dev/null
+++ b/lib/lwip/Kconfig
@@ -0,0 +1,12 @@
+config LWIP_LIB
+	bool "Support LWIP library"
+	help
+	  Selecting this option will enable the shared LWIP library code.
+
+config CMD_LWIP
+        bool "lwip"
+        default y
+	depends on LWIP_LIB
+        help
+          lwip networking command.
+
diff --git a/lib/lwip/Makefile b/lib/lwip/Makefile
new file mode 100644
index 0000000000..2c665dcb88
--- /dev/null
+++ b/lib/lwip/Makefile
@@ -0,0 +1,78 @@
+# SPDX-License-Identifier: GPL-2.0+
+#
+# (C) Copyright 2023 Linaro
+
+LWIPDIR=lwip-external/src
+
+ccflags-y += -I$(CURDIR)/lib/lwip/port/include
+ccflags-y += -I$(CURDIR)/lib/lwip/lwip-external/src/include -I$(CURDIR)/lib/lwip
+
+obj-y += $(LWIPDIR)/core/init.o \
+	$(LWIPDIR)/core/def.o \
+	$(LWIPDIR)/core/dns.o \
+	$(LWIPDIR)/core/inet_chksum.o \
+	$(LWIPDIR)/core/ip.o \
+	$(LWIPDIR)/core/mem.o \
+	$(LWIPDIR)/core/memp.o \
+	$(LWIPDIR)/core/netif.o \
+	$(LWIPDIR)/core/pbuf.o \
+	$(LWIPDIR)/core/raw.o \
+	$(LWIPDIR)/core/stats.o \
+	$(LWIPDIR)/core/sys.o \
+	$(LWIPDIR)/core/altcp.o \
+	$(LWIPDIR)/core/altcp_alloc.o \
+	$(LWIPDIR)/core/altcp_tcp.o \
+	$(LWIPDIR)/core/tcp.o \
+	$(LWIPDIR)/core/tcp_in.o \
+	$(LWIPDIR)/core/tcp_out.o \
+	$(LWIPDIR)/core/timeouts.o \
+	$(LWIPDIR)/core/udp.o
+
+# IPv4
+obj-y += $(LWIPDIR)/core/ipv4/acd.o \
+        $(LWIPDIR)/core/ipv4/autoip.o \
+        $(LWIPDIR)/core/ipv4/dhcp.o \
+        $(LWIPDIR)/core/ipv4/etharp.o \
+        $(LWIPDIR)/core/ipv4/icmp.o \
+        $(LWIPDIR)/core/ipv4/igmp.o \
+        $(LWIPDIR)/core/ipv4/ip4_frag.o \
+        $(LWIPDIR)/core/ipv4/ip4.o \
+        $(LWIPDIR)/core/ipv4/ip4_addr.o
+# IPv6
+obj-y += $(LWIPDIR)/core/ipv6/dhcp6.o \
+        $(LWIPDIR)/core/ipv6/ethip6.o \
+        $(LWIPDIR)/core/ipv6/icmp6.o \
+        $(LWIPDIR)/core/ipv6/inet6.o \
+        $(LWIPDIR)/core/ipv6/ip6.o \
+        $(LWIPDIR)/core/ipv6/ip6_addr.o \
+        $(LWIPDIR)/core/ipv6/ip6_frag.o \
+        $(LWIPDIR)/core/ipv6/mld6.o \
+        $(LWIPDIR)/core/ipv6/nd6.o
+# API
+obj-y += $(LWIPDIR)/api/api_lib.o \
+	$(LWIPDIR)/api/api_msg.o \
+	$(LWIPDIR)/api/err.o \
+	$(LWIPDIR)/api/if_api.o \
+	$(LWIPDIR)/api/netbuf.o \
+	$(LWIPDIR)/api/netdb.o \
+	$(LWIPDIR)/api/netifapi.o \
+	$(LWIPDIR)/api/sockets.o \
+	$(LWIPDIR)/api/tcpip.o
+
+# Netdevs
+obj-y += $(LWIPDIR)/netif/ethernet.o
+
+obj-y += port/if.o
+obj-y += port/sys-arch.o
+
+obj-$(CONFIG_CMD_LWIP) += cmd-lwip.o
+
+$(obj)/apps/ping/ping.o: $(obj)/apps/ping/ping.c
+$(obj)/apps/ping/ping.c:
+	cp ./lib/lwip/lwip-external/contrib/apps/ping/ping.c $(obj)/apps/ping/ping.c
+	patch -p1 < $(obj)/apps/ping/rmstatic.patch
+
+obj-$(CONFIG_CMD_LWIP) += apps/ping/ping.o
+obj-$(CONFIG_CMD_LWIP) += apps/ping/lwip_ping.o
+
+
diff --git a/lib/lwip/apps/ping/lwip_ping.c b/lib/lwip/apps/ping/lwip_ping.c
new file mode 100644
index 0000000000..91ce63063a
--- /dev/null
+++ b/lib/lwip/apps/ping/lwip_ping.c
@@ -0,0 +1,33 @@
+#include "lwip/opt.h"
+
+#include "lwip_ping.h"
+
+#include "lwip/mem.h"
+#include "lwip/raw.h"
+#include "lwip/icmp.h"
+#include "lwip/netif.h"
+#include "lwip/sys.h"
+#include "lwip/timeouts.h"
+#include "lwip/inet_chksum.h"
+#include "lwip/prot/ip4.h"
+
+#include "lwip/ip_addr.h"
+
+extern const ip_addr_t* ping_target;
+
+static ip_addr_t ip_target;
+
+int lwip_ping_init(char *ping_addr)
+{
+  //ipaddr_aton(ping_addr, ping_target);
+  IP4_ADDR(&ip_target, 192,168,1,2);
+  ping_target = &ip_target;
+  if (ping_target == 0) {
+  	printf("%s() wrong ping addr\n", __func__);
+	return -1;
+  }
+
+  ping_raw_init();
+
+  return 0;
+}
diff --git a/lib/lwip/apps/ping/lwip_ping.h b/lib/lwip/apps/ping/lwip_ping.h
new file mode 100644
index 0000000000..047dfc2111
--- /dev/null
+++ b/lib/lwip/apps/ping/lwip_ping.h
@@ -0,0 +1,19 @@
+#ifndef LWIP_PING_H
+#define LWIP_PING_H
+
+#include <lwip/ip_addr.h>
+
+/**
+ * PING_USE_SOCKETS: Set to 1 to use sockets, otherwise the raw api is used
+ */
+#ifndef PING_USE_SOCKETS
+#define PING_USE_SOCKETS   0
+#endif
+
+//void lwip_ping_init(const ip_addr_t* ping_addr);
+int lwip_ping_init(char *ping_addr);
+
+void ping_raw_init(void);
+void lwip_ping_send_now(void);
+
+#endif /* LWIP_PING_H */
diff --git a/lib/lwip/apps/ping/ping.h b/lib/lwip/apps/ping/ping.h
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/lib/lwip/apps/ping/rmstatic.patch b/lib/lwip/apps/ping/rmstatic.patch
new file mode 100644
index 0000000000..758ce729fa
--- /dev/null
+++ b/lib/lwip/apps/ping/rmstatic.patch
@@ -0,0 +1,32 @@
+--- ./lib/lwip/lwip-external/contrib/apps/ping/ping.c	2023-05-03 13:20:14.510795833 +0000
++++ ./lib/lwip/apps/ping/ping.c	2023-05-03 14:37:05.497873883 +0000
+@@ -93,7 +93,7 @@
+ #endif
+ 
+ /* ping variables */
+-static const ip_addr_t* ping_target;
++const ip_addr_t* ping_target;
+ static u16_t ping_seq_num;
+ #ifdef LWIP_DEBUG
+ static u32_t ping_time;
+@@ -304,9 +304,9 @@ ping_recv(void *arg, struct raw_pcb *pcb
+     iecho = (struct icmp_echo_hdr *)p->payload;
+ 
+     if ((iecho->id == PING_ID) && (iecho->seqno == lwip_htons(ping_seq_num))) {
+-      LWIP_DEBUGF( PING_DEBUG, ("ping: recv "));
++      printf("ping: recv ");
+       ip_addr_debug_print(PING_DEBUG, addr);
+-      LWIP_DEBUGF( PING_DEBUG, (" %"U32_F" ms\n", (sys_now()-ping_time)));
++      printf(" %"U32_F" ms\n", (sys_now()-ping_time));
+ 
+       /* do some ping result processing */
+       PING_RESULT(1);
+@@ -361,7 +361,7 @@ ping_timeout(void *arg)
+   sys_timeout(PING_DELAY, ping_timeout, pcb);
+ }
+ 
+-static void
++void
+ ping_raw_init(void)
+ {
+   ping_pcb = raw_new(IP_PROTO_ICMP);
diff --git a/lib/lwip/cmd-lwip.c b/lib/lwip/cmd-lwip.c
new file mode 100644
index 0000000000..f2e25a8c29
--- /dev/null
+++ b/lib/lwip/cmd-lwip.c
@@ -0,0 +1,98 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * (C) Copyright 2023
+ * Maxim Uvarov, maxim.uvarov@linaro.org
+ */
+
+#include <common.h>
+#include <command.h>
+#include <console.h>
+#include <display_options.h>
+#include <memalign.h>
+#include <net.h>
+
+#include "apps/ping/lwip_ping.h"
+
+extern int uboot_lwip_init(void);
+extern int uboot_lwip_loop_is_done(void);
+
+static int do_lwip_info(struct cmd_tbl *cmdtp, int flag, int argc,
+		      char *const argv[])
+{
+	printf("TBD: %s\n", __func__);
+	return CMD_RET_SUCCESS;
+}
+
+static int do_lwip_init(struct cmd_tbl *cmdtp, int flag, int argc,
+		      char *const argv[])
+{
+	if (!uboot_lwip_init())
+		return CMD_RET_SUCCESS;
+	return CMD_RET_FAILURE;
+}
+
+static int do_lwip_ping(struct cmd_tbl *cmdtp, int flag, int argc,
+		      char *const argv[])
+{
+	if (argc < 2) {
+		printf("argc = %d, error\n", argc);
+		return CMD_RET_USAGE;
+	}
+
+	eth_init(); /* activate u-boot eth dev */
+
+	printf("pinging addr: %s\n", argv[1]);
+	if (lwip_ping_init(argv[2])) {
+		printf("ping init fail\n");
+		return CMD_RET_FAILURE;
+	}
+
+	ping_send_now();
+
+	lwip_loop_set();
+	if (net_loop(LWIP) < 0) {
+		printf("ping failed; host %s is not alive\n", argv[1]);
+		return CMD_RET_FAILURE;
+	}
+	return CMD_RET_SUCCESS;
+}
+
+static struct cmd_tbl cmds[] = {
+	U_BOOT_CMD_MKENT(info, 1, 0, do_lwip_info, "", ""),
+	U_BOOT_CMD_MKENT(init, 1, 0, do_lwip_init, "", ""),
+	U_BOOT_CMD_MKENT(ping, 2, 0, do_lwip_ping, "", ""),
+};
+
+static int do_ops(struct cmd_tbl *cmdtp, int flag, int argc,
+		     char *const argv[])
+{
+	struct cmd_tbl *cp;
+
+	cp = find_cmd_tbl(argv[1], cmds, ARRAY_SIZE(cmds));
+
+	/* Drop the mmc command */
+	argc--;
+	argv++;
+
+	if (cp == NULL || argc > cp->maxargs)
+		return CMD_RET_USAGE;
+	if (flag == CMD_FLAG_REPEAT && !cmd_is_repeatable(cp))
+		return CMD_RET_SUCCESS;
+
+	return cp->cmd(cmdtp, flag, argc, argv);
+}
+
+U_BOOT_CMD(
+	lwip, 4, 1, do_ops,
+	"LWIP sub system",
+	"info - display info\n"
+	"init - init LWIP\n"
+	"ping addr - ping addr\n"
+	);
+
+/* Old command kept for compatibility. Same as 'mmc info' */
+U_BOOT_CMD(
+	lwipinfo, 1, 0, do_lwip_info,
+	"display LWIP info",
+	"- display LWIP stack info"
+);
diff --git a/lib/lwip/lwipopts.h b/lib/lwip/lwipopts.h
new file mode 100644
index 0000000000..581d05420a
--- /dev/null
+++ b/lib/lwip/lwipopts.h
@@ -0,0 +1,484 @@
+/**
+ * @file
+ *
+ * lwIP Options Configuration
+ */
+
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ */
+#ifndef LWIP_LWIPOPTS_H
+#define LWIP_LWIPOPTS_H
+
+
+
+/*
+ * Include user defined options first. Anything not defined in these files
+ * will be set to standard values. Override anything you don't like!
+ */
+#include "lwipopts.h"
+
+#define LWIP_DEBUG 1
+#define LWIP_DBG_MIN_LEVEL              LWIP_DBG_LEVEL_ALL
+#define LWIP_DBG_TYPES_ON               LWIP_DBG_OFF
+#define ETHARP_DEBUG                    LWIP_DBG_OFF
+#define NETIF_DEBUG                     LWIP_DBG_OFF
+#define PBUF_DEBUG                      LWIP_DBG_OFF
+#define API_LIB_DEBUG                   LWIP_DBG_OFF
+#define API_MSG_DEBUG                   LWIP_DBG_OFF
+#define SOCKETS_DEBUG                   LWIP_DBG_OFF
+#define ICMP_DEBUG                      LWIP_DBG_OFF
+#define IGMP_DEBUG                      LWIP_DBG_OFF
+#define INET_DEBUG                      LWIP_DBG_OFF
+#define IP_DEBUG                        LWIP_DBG_OFF
+#define IP_REASS_DEBUG                  LWIP_DBG_OFF
+#define RAW_DEBUG                       LWIP_DBG_OFF
+#define MEM_DEBUG                       LWIP_DBG_OFF
+#define MEMP_DEBUG                      LWIP_DBG_OFF
+#define SYS_DEBUG                       LWIP_DBG_OFF
+#define TIMERS_DEBUG                    LWIP_DBG_OFF
+#define TCP_DEBUG                       LWIP_DBG_OFF
+#define TCP_INPUT_DEBUG                 LWIP_DBG_OFF
+#define TCP_FR_DEBUG                    LWIP_DBG_OFF
+#define TCP_RTO_DEBUG                   LWIP_DBG_OFF
+#define TCP_CWND_DEBUG                  LWIP_DBG_OFF
+#define TCP_WND_DEBUG                   LWIP_DBG_OFF
+#define TCP_OUTPUT_DEBUG                LWIP_DBG_OFF
+#define TCP_RST_DEBUG                   LWIP_DBG_OFF
+#define TCP_QLEN_DEBUG                  LWIP_DBG_OFF
+#define UDP_DEBUG                       LWIP_DBG_OFF
+#define TCPIP_DEBUG                     LWIP_DBG_OFF
+#define SLIP_DEBUG                      LWIP_DBG_OFF
+#define DHCP_DEBUG                      LWIP_DBG_OFF
+#define AUTOIP_DEBUG                    LWIP_DBG_OFF
+#define DNS_DEBUG                       LWIP_DBG_OFF
+#define IP6_DEBUG                       LWIP_DBG_OFF
+#define DHCP6_DEBUG                     LWIP_DBG_OFF
+#define LWIP_TESTMODE                   0
+#include "lwip/debug.h"
+
+/*
+   -----------------------------------------------
+   ---------- Platform specific locking ----------
+   -----------------------------------------------
+*/
+
+/**
+ * SYS_LIGHTWEIGHT_PROT==1: if you want inter-task protection for certain
+ * critical regions during buffer allocation, deallocation and memory
+ * allocation and deallocation.
+ */
+#define SYS_LIGHTWEIGHT_PROT            0
+
+/**
+ * NO_SYS==1: Provides VERY minimal functionality. Otherwise,
+ * use lwIP facilities.
+ */
+#define NO_SYS                          0
+
+/*
+   ------------------------------------
+   ---------- Memory options ----------
+   ------------------------------------
+*/
+
+/**
+ * MEM_ALIGNMENT: should be set to the alignment of the CPU
+ *    4 byte alignment -> #define MEM_ALIGNMENT 4
+ *    2 byte alignment -> #define MEM_ALIGNMENT 2
+ */
+#define MEM_ALIGNMENT                   1 
+
+/**
+ * MEM_SIZE: the size of the heap memory. If the application will send
+ * a lot of data that needs to be copied, this should be set high.
+ */
+#define MEM_SIZE                        1600
+
+/*
+   ------------------------------------------------
+   ---------- Internal Memory Pool Sizes ----------
+   ------------------------------------------------
+*/
+/**
+ * MEMP_NUM_PBUF: the number of memp struct pbufs (used for PBUF_ROM and PBUF_REF).
+ * If the application sends a lot of data out of ROM (or other static memory),
+ * this should be set high.
+ */
+#define MEMP_NUM_PBUF                   4 
+
+/**
+ * MEMP_NUM_RAW_PCB: Number of raw connection PCBs
+ * (requires the LWIP_RAW option)
+ */
+#define MEMP_NUM_RAW_PCB                2 
+
+/**
+ * MEMP_NUM_UDP_PCB: the number of UDP protocol control blocks. One
+ * per active UDP "connection".
+ * (requires the LWIP_UDP option)
+ */
+#define MEMP_NUM_UDP_PCB                4
+
+/**
+ * MEMP_NUM_TCP_PCB: the number of simulatenously active TCP connections.
+ * (requires the LWIP_TCP option)
+ */
+#define MEMP_NUM_TCP_PCB                2
+
+/**
+ * MEMP_NUM_TCP_PCB_LISTEN: the number of listening TCP connections.
+ * (requires the LWIP_TCP option)
+ */
+#define MEMP_NUM_TCP_PCB_LISTEN         2
+
+/**
+ * MEMP_NUM_TCP_SEG: the number of simultaneously queued TCP segments.
+ * (requires the LWIP_TCP option)
+ */
+#define MEMP_NUM_TCP_SEG                16
+
+/**
+ * MEMP_NUM_REASSDATA: the number of simultaneously IP packets queued for
+ * reassembly (whole packets, not fragments!)
+ */
+#define MEMP_NUM_REASSDATA              1
+
+/**
+ * MEMP_NUM_ARP_QUEUE: the number of simulateously queued outgoing
+ * packets (pbufs) that are waiting for an ARP request (to resolve
+ * their destination address) to finish.
+ * (requires the ARP_QUEUEING option)
+ */
+#define MEMP_NUM_ARP_QUEUE              2
+
+/**
+ * MEMP_NUM_SYS_TIMEOUT: the number of simulateously active timeouts.
+ * (requires NO_SYS==0)
+ */
+#define MEMP_NUM_SYS_TIMEOUT            4
+
+/**
+ * MEMP_NUM_NETBUF: the number of struct netbufs.
+ * (only needed if you use the sequential API, like api_lib.c)
+ */
+#define MEMP_NUM_NETBUF                 2
+
+/**
+ * MEMP_NUM_NETCONN: the number of struct netconns.
+ * (only needed if you use the sequential API, like api_lib.c)
+ */
+#define MEMP_NUM_NETCONN               32
+
+/**
+ * MEMP_NUM_TCPIP_MSG_API: the number of struct tcpip_msg, which are used
+ * for callback/timeout API communication.
+ * (only needed if you use tcpip.c)
+ */
+#define MEMP_NUM_TCPIP_MSG_API          8
+
+/**
+ * MEMP_NUM_TCPIP_MSG_INPKT: the number of struct tcpip_msg, which are used
+ * for incoming packets.
+ * (only needed if you use tcpip.c)
+ */
+#define MEMP_NUM_TCPIP_MSG_INPKT        8
+
+/**
+ * PBUF_POOL_SIZE: the number of buffers in the pbuf pool.
+ */
+#define PBUF_POOL_SIZE                  8
+
+/*
+   ---------------------------------
+   ---------- ARP options ----------
+   ---------------------------------
+*/
+/**
+ * LWIP_ARP==1: Enable ARP functionality.
+ */
+#define LWIP_ARP                        1
+
+/*
+   --------------------------------
+   ---------- IP options ----------
+   --------------------------------
+*/
+/**
+ * IP_FORWARD==1: Enables the ability to forward IP packets across network
+ * interfaces. If you are going to run lwIP on a device with only one network
+ * interface, define this to 0.
+ */
+#define IP_FORWARD                      0
+
+/**
+ * IP_OPTIONS: Defines the behavior for IP options.
+ *      IP_OPTIONS_ALLOWED==0: All packets with IP options are dropped.
+ *      IP_OPTIONS_ALLOWED==1: IP options are allowed (but not parsed).
+ */
+#define IP_OPTIONS_ALLOWED              1
+
+/**
+ * IP_REASSEMBLY==1: Reassemble incoming fragmented IP packets. Note that
+ * this option does not affect outgoing packet sizes, which can be controlled
+ * via IP_FRAG.
+ */
+#define IP_REASSEMBLY                   1
+
+/**
+ * IP_FRAG==1: Fragment outgoing IP packets if their size exceeds MTU. Note
+ * that this option does not affect incoming packet sizes, which can be
+ * controlled via IP_REASSEMBLY.
+ */
+#define IP_FRAG                         1
+
+/**
+ * IP_REASS_MAXAGE: Maximum time (in multiples of IP_TMR_INTERVAL - so seconds, normally)
+ * a fragmented IP packet waits for all fragments to arrive. If not all fragments arrived
+ * in this time, the whole packet is discarded.
+ */
+#define IP_REASS_MAXAGE                 3
+
+/**
+ * IP_REASS_MAX_PBUFS: Total maximum amount of pbufs waiting to be reassembled.
+ * Since the received pbufs are enqueued, be sure to configure
+ * PBUF_POOL_SIZE > IP_REASS_MAX_PBUFS so that the stack is still able to receive
+ * packets even if the maximum amount of fragments is enqueued for reassembly!
+ */
+#define IP_REASS_MAX_PBUFS              4
+
+/**
+ * IP_FRAG_USES_STATIC_BUF==1: Use a static MTU-sized buffer for IP
+ * fragmentation. Otherwise pbufs are allocated and reference the original
+    * packet data to be fragmented.
+*/
+#define IP_FRAG_USES_STATIC_BUF         0
+
+/**
+ * IP_DEFAULT_TTL: Default value for Time-To-Live used by transport layers.
+ */
+#define IP_DEFAULT_TTL                  255
+
+/*
+   ----------------------------------
+   ---------- ICMP options ----------
+   ----------------------------------
+*/
+/**
+ * LWIP_ICMP==1: Enable ICMP module inside the IP stack.
+ * Be careful, disable that make your product non-compliant to RFC1122
+ */
+#define LWIP_ICMP                       1
+
+/*
+   ---------------------------------
+   ---------- RAW options ----------
+   ---------------------------------
+*/
+/**
+ * LWIP_RAW==1: Enable application layer to hook into the IP layer itself.
+ */
+#define LWIP_RAW                        1
+
+/*
+   ----------------------------------
+   ---------- DHCP options ----------
+   ----------------------------------
+*/
+/**
+ * LWIP_DHCP==1: Enable DHCP module.
+ */
+#define LWIP_DHCP                       0
+
+
+/*
+   ------------------------------------
+   ---------- AUTOIP options ----------
+   ------------------------------------
+*/
+/**
+ * LWIP_AUTOIP==1: Enable AUTOIP module.
+ */
+#define LWIP_AUTOIP                     0
+
+/*
+   ----------------------------------
+   ---------- SNMP options ----------
+   ----------------------------------
+*/
+/**
+ * LWIP_SNMP==1: Turn on SNMP module. UDP must be available for SNMP
+ * transport.
+ */
+#define LWIP_SNMP                       0
+
+/*
+   ----------------------------------
+   ---------- IGMP options ----------
+   ----------------------------------
+*/
+/**
+ * LWIP_IGMP==1: Turn on IGMP module.
+ */
+#define LWIP_IGMP                       0
+
+/*
+   ----------------------------------
+   ---------- DNS options -----------
+   ----------------------------------
+*/
+/**
+ * LWIP_DNS==1: Turn on DNS module. UDP must be available for DNS
+ * transport.
+ */
+#define LWIP_DNS                        0
+
+/*
+   ---------------------------------
+   ---------- UDP options ----------
+   ---------------------------------
+*/
+/**
+ * LWIP_UDP==1: Turn on UDP.
+ */
+#define LWIP_UDP                        1
+
+/*
+   ---------------------------------
+   ---------- TCP options ----------
+   ---------------------------------
+*/
+/**
+ * LWIP_TCP==1: Turn on TCP.
+ */
+#define LWIP_TCP                        1
+
+#define LWIP_LISTEN_BACKLOG             0
+
+/*
+   ----------------------------------
+   ---------- Pbuf options ----------
+   ----------------------------------
+*/
+/**
+ * PBUF_LINK_HLEN: the number of bytes that should be allocated for a
+ * link level header. The default is 14, the standard value for
+ * Ethernet.
+ */
+#define PBUF_LINK_HLEN                  16
+
+/**
+ * PBUF_POOL_BUFSIZE: the size of each pbuf in the pbuf pool. The default is
+ * designed to accommodate single full size TCP frame in one pbuf, including
+ * TCP_MSS, IP header, and link header.
+*
+ */
+#define PBUF_POOL_BUFSIZE               LWIP_MEM_ALIGN_SIZE(TCP_MSS+40+PBUF_LINK_HLEN)
+
+/*
+   ------------------------------------
+   ---------- LOOPIF options ----------
+   ------------------------------------
+*/
+/**
+ * LWIP_HAVE_LOOPIF==1: Support loop interface (127.0.0.1) and loopif.c
+ */
+#define LWIP_HAVE_LOOPIF                0
+
+/*
+   ----------------------------------------------
+   ---------- Sequential layer options ----------
+   ----------------------------------------------
+*/
+
+/**
+ * LWIP_NETCONN==1: Enable Netconn API (require to use api_lib.c)
+ */
+#define LWIP_NETCONN                    1
+
+/*
+   ------------------------------------
+   ---------- Socket options ----------
+   ------------------------------------
+*/
+/**
+ * LWIP_SOCKET==1: Enable Socket API (require to use sockets.c)
+ */
+#define LWIP_SOCKET                     1
+
+/**
+ * SO_REUSE==1: Enable SO_REUSEADDR
+ */
+#define SO_REUSE                        1
+
+/*
+   ----------------------------------------
+   ---------- Statistics options ----------
+   ----------------------------------------
+*/
+/**
+ * LWIP_STATS==1: Enable statistics collection in lwip_stats.
+ */
+#define LWIP_STATS                      0
+/*
+   ---------------------------------
+   ---------- PPP options ----------
+   ---------------------------------
+*/
+/**
+ * PPP_SUPPORT==1: Enable PPP.
+ */
+#define PPP_SUPPORT                     0
+
+
+
+/*
+   ---------------------------------------
+   ---------- Threading options ----------
+   ---------------------------------------
+*/
+
+#define LWIP_TCPIP_CORE_LOCKING    0
+
+// #if !NO_SYS
+// void sys_check_core_locking(void);
+// #define LWIP_ASSERT_CORE_LOCKED()  sys_check_core_locking()
+// #endif
+
+#define LWIP_NETIF_LOOPBACK 1
+/* use malloc instead of pool */
+#define MEMP_MEM_MALLOC                 1
+#define MEMP_MEM_INIT  			1
+#define MEM_LIBC_MALLOC 1
+
+
+
+#endif /* LWIP_LWIPOPTS_H */
diff --git a/lib/lwip/port/if.c b/lib/lwip/port/if.c
new file mode 100644
index 0000000000..dd423eed16
--- /dev/null
+++ b/lib/lwip/port/if.c
@@ -0,0 +1,256 @@
+#include <common.h>
+#include <command.h>
+
+#include "lwip/debug.h"
+#include "lwip/arch.h"
+#include "netif/etharp.h"
+#include "lwip/stats.h"
+#include "lwip/def.h"
+#include "lwip/mem.h"
+#include "lwip/pbuf.h"
+#include "lwip/sys.h"
+#include "lwip/netif.h"
+
+#include "lwip/ip.h"
+
+#define IFNAME0 'e'
+#define IFNAME1 '0'
+
+static struct pbuf * low_level_input(struct netif *netif);
+static int uboot_net_use_lwip = 0;
+
+int lwip_enabled(void)
+{
+	return uboot_net_use_lwip;
+}
+
+static int loop_lwip;
+
+/* ret 0 - loop not done
+ *     1 - loop is done.
+ */
+int lwip_loop_is_done(void)
+{
+	return loop_lwip;
+}
+
+void lwip_loop_set(void)
+{
+        loop_lwip = 1;
+}
+
+struct uboot_lwip_if {
+};
+
+static struct netif uboot_netif;
+
+#define LWIP_PORT_INIT_IPADDR(addr)   IP4_ADDR((addr), 192,168,1,200)
+#define LWIP_PORT_INIT_GW(addr)       IP4_ADDR((addr), 192,168,1,1)
+#define LWIP_PORT_INIT_NETMASK(addr)  IP4_ADDR((addr), 255,255,255,0)
+
+extern uchar *net_rx_packet;
+extern int    net_rx_packet_len;
+
+int uboot_lwip_poll(void) {
+	struct pbuf *p;
+	int err;
+
+	//printf("call for netif_poll!!!!\n");
+	//netif_poll(&uboot_netif);
+	p = low_level_input(&uboot_netif);
+	if (NULL == p) {
+		printf("error p = low_level_input = NULL\n");
+		return 0;
+	}
+	err = ethernet_input(p, &uboot_netif);
+	if (err)
+		printf("ip4_input err %d\n", err);
+
+	return 0;
+}
+
+static struct pbuf * low_level_input(struct netif *netif)
+{
+	struct pbuf *p, *q;
+	u16_t len = net_rx_packet_len;
+	uchar *data = net_rx_packet;
+
+	//printf("%s()\n", __func__);
+#if ETH_PAD_SIZE
+	len += ETH_PAD_SIZE; /* allow room for Ethernet padding */
+#endif
+
+	/* We allocate a pbuf chain of pbufs from the pool. */
+	p = pbuf_alloc(PBUF_RAW, len, PBUF_POOL);
+	if (p != NULL) {
+#if ETH_PAD_SIZE
+		pbuf_remove_header(p, ETH_PAD_SIZE); /* drop the padding word */
+#endif
+		/* We iterate over the pbuf chain until we have read the entire
+		 * packet into the pbuf. */
+		for (q = p; q != NULL; q = q->next) {
+			/* Read enough bytes to fill this pbuf in the chain. The
+			 * available data in the pbuf is given by the q->len
+			 * variable.
+			 * This does not necessarily have to be a memcpy, you can also preallocate
+			 * pbufs for a DMA-enabled MAC and after receiving truncate it to the
+			 * actually received size. In this case, ensure the tot_len member of the
+			 * pbuf is the sum of the chained pbuf len members.
+			 */
+			MEMCPY(q->payload, data, q->len);
+			data += q->len;
+		}
+		//acknowledge that packet has been read();
+
+#if ETH_PAD_SIZE
+		pbuf_add_header(p, ETH_PAD_SIZE); /* reclaim the padding word */
+#endif
+		LINK_STATS_INC(link.recv);
+	} else {
+		//drop packet();
+		LINK_STATS_INC(link.memerr);
+		LINK_STATS_INC(link.drop);
+	}
+
+	return p;
+}
+
+/* Maxim: accoding to lwip idea this has to be separate thread in the background
+ * to poll RX packets from the network. The first we need to try to inject
+ * it directly to net/net.c eth_rx() calls. Assuming we do not implement threading
+ * and we roll in the main polling loop. Then socket operation should also be possible
+ * to call for non blocking socket calls.
+ * If lwip will not work without threading, then we to implement some scheduler with semaphores.
+ * We can base ./examples/standalone/sched.c example code for that.
+ *
+ */
+static int ethernetif_input(struct pbuf *p, struct netif *netif)
+{
+	struct ethernetif *ethernetif;
+
+	ethernetif = netif->state;
+
+	/* move received packet into a new pbuf */
+	p = low_level_input(netif);
+
+	/* if no packet could be read, silently ignore this */
+	if (p != NULL) {
+		/* pass all packets to ethernet_input, which decides what packets it supports */
+		if (netif->input(p, netif) != ERR_OK) {
+			LWIP_DEBUGF(NETIF_DEBUG, ("ethernetif_input: IP input error\n"));
+			pbuf_free(p);
+			p = NULL;
+		}
+	}
+	return 0;
+}
+
+static err_t low_level_output(struct netif *netif, struct pbuf *p)
+{
+	int err;
+
+        //printf("TX data len %d, tot_len %d\n", p->len,  p->tot_len);
+	err = eth_send(p->payload, p->len);
+	if (err != 0) {
+		printf("eth_send error %d\n", err);
+		return ERR_ABRT;
+	}	
+	return ERR_OK;
+}
+
+err_t uboot_lwip_if_init(struct netif *netif)
+{
+	struct uboot_lwip_if *uif = (struct uboot_lwip_if *)malloc(sizeof(struct uboot_lwip_if));
+
+	if (uif == NULL) {
+		printf("uboot_lwip_if: out of memory\n");
+		return ERR_MEM;
+	}
+	netif->state = uif;
+
+	netif->name[0] = IFNAME0;
+	netif->name[1] = IFNAME1;
+
+	netif->hwaddr_len = ETHARP_HWADDR_LEN;
+	/* set MAC hardware address */
+	netif->hwaddr[0] = 0xf6;
+	netif->hwaddr[1] = 0x11;
+	netif->hwaddr[2] = 0x1;
+	netif->hwaddr[3] = 0x2;
+	netif->hwaddr[4] = 0x3;
+	netif->hwaddr[5] = 0x4;
+
+#if LWIP_IPV4
+	netif->output = etharp_output;
+#endif /* LWIP_IPV4 */
+#if LWIP_IPV6
+	netif->output_ip6 = ethip6_output;
+#endif /* LWIP_IPV6 */
+	netif->linkoutput = low_level_output;
+	netif->mtu = 1500;
+	netif->flags = NETIF_FLAG_BROADCAST | NETIF_FLAG_ETHARP | NETIF_FLAG_LINK_UP;
+
+	eth_init(); /* activate u-boot eth dev */
+
+	printf("Initialized LWIP stack\n");
+	return ERR_OK;
+}
+
+int uboot_lwip_init()
+{
+	ip4_addr_t ipaddr, netmask, gw;
+	//int err;
+
+	if (uboot_net_use_lwip)
+		return CMD_RET_SUCCESS;
+
+	ip4_addr_set_zero(&gw);
+	ip4_addr_set_zero(&ipaddr);
+	ip4_addr_set_zero(&netmask);
+
+#if USE_DHCP
+	printf("Starting lwIP, local interface IP is dhcp-enabled\n");
+#elif USE_AUTOIP
+	printf("Starting lwIP, local interface IP is autoip-enabled\n");
+#else /* USE_DHCP */
+	LWIP_PORT_INIT_GW(&gw);
+	LWIP_PORT_INIT_IPADDR(&ipaddr);
+	LWIP_PORT_INIT_NETMASK(&netmask);
+	printf("Starting lwIP, local interface IP is %s\n", ip4addr_ntoa(&ipaddr));
+#endif /* USE_DHCP */
+
+	if (netif_add(&uboot_netif, &ipaddr, &netmask, &gw, &uboot_netif, uboot_lwip_if_init, ethernetif_input) == NULL)
+		printf("err: netif_add failed!\n");
+  	netif_set_up(&uboot_netif);
+  	netif_set_link_up(&uboot_netif);
+
+#if LWIP_IPV6
+	netif_create_ip6_linklocal_address(netif_default, 1);
+	printf("ip6 linklocal address: %s\n", ip6addr_ntoa(netif_ip6_addr(netif_default, 0)));
+#endif /* LWIP_IPV6 */
+
+#if LWIP_NETIF_STATUS_CALLBACK
+	netif_set_status_callback(netif_default, status_callback);
+#endif /* LWIP_NETIF_STATUS_CALLBACK */
+#if LWIP_NETIF_LINK_CALLBACK
+	netif_set_link_callback(netif_default, link_callback);
+#endif /* LWIP_NETIF_LINK_CALLBACK */
+
+#if LWIP_AUTOIP
+	autoip_set_struct(netif_default, &netif_autoip);
+#endif /* LWIP_AUTOIP */
+#if LWIP_DHCP
+	dhcp_set_struct(netif_default, &netif_dhcp);
+#endif /* LWIP_DHCP */
+	//netif_set_up(netif_default);
+#if USE_DHCP
+	err = dhcp_start(netif_default);
+	LWIP_ASSERT("dhcp_start failed", err == ERR_OK);
+#elif USE_AUTOIP
+	err = autoip_start(netif_default);
+	LWIP_ASSERT("autoip_start failed", err == ERR_OK);
+#endif /* USE_DHCP */
+	uboot_net_use_lwip = 1;
+
+	return CMD_RET_SUCCESS;
+}
diff --git a/lib/lwip/port/include/arch/cc.h b/lib/lwip/port/include/arch/cc.h
new file mode 100644
index 0000000000..06cc807e85
--- /dev/null
+++ b/lib/lwip/port/include/arch/cc.h
@@ -0,0 +1,41 @@
+#ifndef LWIP_ARCH_CC_H
+#define LWIP_ARCH_CC_H
+
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include "u-sockets.h"
+
+#define LWIP_ERRNO_INCLUDE <errno.h>
+
+#define LWIP_ERRNO_STDINCLUDE	1
+#define LWIP_NO_UNISTD_H 1 
+#define LWIP_TIMEVAL_PRIVATE 1
+
+extern unsigned int lwip_port_rand(void);
+#define LWIP_RAND() (lwip_port_rand())
+
+/* different handling for unit test, normally not needed */
+#ifdef LWIP_NOASSERT_ON_ERROR
+#define LWIP_ERROR(message, expression, handler) do { if (!(expression)) { \
+  handler;}} while(0)
+#endif
+
+#define LWIP_DONT_PROVIDE_BYTEORDER_FUNCTIONS
+
+#define LWIP_PLATFORM_ASSERT(x) do {printf("Assertion \"%s\" failed at line %d in %s\n", \
+                                     x, __LINE__, __FILE__);} while(0)
+
+static inline int atoi(const char* str)
+{
+	int r = 0;
+	int i;
+
+	for (i = 0; str[i] != '\0'; ++i)
+		r = r * 10 + str[i] - '0';
+
+	return r;
+}
+
+#define LWIP_ERR_T int
+
+#endif /* LWIP_ARCH_CC_H */
diff --git a/lib/lwip/port/include/arch/sys_arch.h b/lib/lwip/port/include/arch/sys_arch.h
new file mode 100644
index 0000000000..929a35e12d
--- /dev/null
+++ b/lib/lwip/port/include/arch/sys_arch.h
@@ -0,0 +1,78 @@
+#ifndef LWIP_ARCH_SYS_ARCH_H
+#define LWIP_ARCH_SYS_ARCH_H
+
+#include "lwip/opt.h"
+#include "lwip/arch.h"
+#include "lwip/err.h"
+
+#define ERR_NEED_SCHED 123
+
+void sys_arch_msleep(u32_t delay_ms);
+#define sys_msleep(ms) sys_arch_msleep(ms)
+
+#if SYS_LIGHTWEIGHT_PROT
+typedef u32_t sys_prot_t;
+#endif /* SYS_LIGHTWEIGHT_PROT */
+
+#include <errno.h>
+
+#define SYS_MBOX_NULL NULL
+#define SYS_SEM_NULL  NULL
+
+typedef u32_t sys_prot_t;
+
+struct sys_sem;
+typedef struct sys_sem * sys_sem_t;
+#define sys_sem_valid(sem) (((sem) != NULL) && (*(sem) != NULL))
+#define sys_sem_set_invalid(sem) do { if((sem) != NULL) { *(sem) = NULL; }}while(0)
+
+/* let sys.h use binary semaphores for mutexes */
+#define LWIP_COMPAT_MUTEX 1
+#define LWIP_COMPAT_MUTEX_ALLOWED 1
+
+struct sys_mbox;
+typedef struct sys_mbox *sys_mbox_t;
+#define sys_mbox_valid(mbox) (((mbox) != NULL) && (*(mbox) != NULL))
+#define sys_mbox_set_invalid(mbox) do { if((mbox) != NULL) { *(mbox) = NULL; }}while(0)
+
+struct sys_thread;
+typedef struct sys_thread * sys_thread_t;
+
+static inline u32_t sys_arch_sem_wait(sys_sem_t *sem, u32_t timeout)
+{
+	return 0;
+};
+
+static inline err_t sys_mbox_trypost(sys_mbox_t *mbox, void *msg)
+{
+      	return 0;
+};
+
+#if 0
+#define sys_sem_new(s, c) ERR_OK
+
+#define sys_sem_wait(s)
+#define sys_sem_free(s)
+#define sys_sem_valid(s) 0
+#define sys_sem_set_invalid(s)
+#define sys_mutex_new(mu) ERR_OK
+#define sys_mutex_lock(mu)
+#define sys_mutex_unlock(mu)
+#define sys_mutex_free(mu)
+#define sys_mutex_valid(mu) 0
+#define sys_mutex_set_invalid(mu)
+#define sys_mbox_new(m, s) ERR_OK
+#define sys_mbox_fetch(m,d)
+#define sys_mbox_tryfetch(m,d)
+#define sys_mbox_post(m,d)
+
+#define sys_mbox_free(m)
+#define sys_mbox_valid(m)
+#define sys_mbox_set_invalid(m)
+#endif
+
+#define sys_sem_signal(s)
+
+//int uboot_lwip_init(void);
+
+#endif /* LWIP_ARCH_SYS_ARCH_H */
diff --git a/lib/lwip/port/include/arch/u-sockets.h b/lib/lwip/port/include/arch/u-sockets.h
new file mode 100644
index 0000000000..aef0b94ee0
--- /dev/null
+++ b/lib/lwip/port/include/arch/u-sockets.h
@@ -0,0 +1,26 @@
+#define MEMP_NUM_NETCONN               32
+#define LWIP_SOCKET_OFFSET              0
+#undef  FD_SETSIZE
+/* Make FD_SETSIZE match NUM_SOCKETS in socket.c */
+#define FD_SETSIZE    MEMP_NUM_NETCONN
+#define FDSETSAFESET(n, code) do { \
+  if (((n) - LWIP_SOCKET_OFFSET < MEMP_NUM_NETCONN) && (((int)(n) - LWIP_SOCKET_OFFSET) >= 0)) { \
+  code; }} while(0)
+#define FDSETSAFEGET(n, code) (((n) - LWIP_SOCKET_OFFSET < MEMP_NUM_NETCONN) && (((int)(n) - LWIP_SOCKET_OFFSET) >= 0) ?\
+  (code) : 0)
+//#define FD_SET(n, p)  FDSETSAFESET(n, (p)->fd_bits[((n)-LWIP_SOCKET_OFFSET)/8] = (u8_t)((p)->fd_bits[((n)-LWIP_SOCKET_OFFSET)/8] |  (1 << (((n)-LWIP_SOCKET_OFFSET) & 7))))
+#define FD_SET(n, p)  FDSETSAFESET(n, (p)->fds_bits[((n)-LWIP_SOCKET_OFFSET)/8] = (u8_t)((p)->fds_bits[((n)-LWIP_SOCKET_OFFSET)/8] |  (1 << (((n)-LWIP_SOCKET_OFFSET) & 7))))
+#define FD_CLR(n, p)  FDSETSAFESET(n, (p)->fds_bits[((n)-LWIP_SOCKET_OFFSET)/8] = (u8_t)((p)->fds_bits[((n)-LWIP_SOCKET_OFFSET)/8] & ~(1 << (((n)-LWIP_SOCKET_OFFSET) & 7))))
+#define FD_ISSET(n,p) FDSETSAFEGET(n, (p)->fds_bits[((n)-LWIP_SOCKET_OFFSET)/8] &   (1 << (((n)-LWIP_SOCKET_OFFSET) & 7)))
+#define FD_ZERO(p)    memset((void*)(p), 0, sizeof(*(p)))
+
+#if 0
+typedef struct fd_set
+{
+  unsigned char fd_bits [(FD_SETSIZE+7)/8];
+} fd_set;
+#endif
+
+#if FD_SETSIZE < (LWIP_SOCKET_OFFSET + MEMP_NUM_NETCONN)
+#error "external FD_SETSIZE too small for number of sockets"
+#endif
diff --git a/lib/lwip/port/include/limits.h b/lib/lwip/port/include/limits.h
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/lib/lwip/port/sys-arch.c b/lib/lwip/port/sys-arch.c
new file mode 100644
index 0000000000..1ae521fde7
--- /dev/null
+++ b/lib/lwip/port/sys-arch.c
@@ -0,0 +1,7 @@
+#include <common.h>
+#include "lwip/opt.h"
+
+u32_t sys_now(void)
+{
+	return get_timer(0);
+}
diff --git a/net/eth-uclass.c b/net/eth-uclass.c
index f41da4b37b..6031ad805d 100644
--- a/net/eth-uclass.c
+++ b/net/eth-uclass.c
@@ -367,8 +367,10 @@ int eth_send(void *packet, int length)
 	if (!current)
 		return -ENODEV;
 
-	if (!eth_is_active(current))
+	if (!eth_is_active(current)) {
+		printf("%s() !eth_is_active\n", __func__);
 		return -EINVAL;
+	}
 
 	ret = eth_get_ops(current)->send(current, packet, length);
 	if (ret < 0) {
diff --git a/net/net.c b/net/net.c
index 57da9bda85..301d825462 100644
--- a/net/net.c
+++ b/net/net.c
@@ -201,6 +201,10 @@ static ulong	time_delta;
 /* THE transmit packet */
 uchar *net_tx_packet;
 
+extern int lwip_enabled(void);
+extern int lwip_loop_is_done(void);
+extern int uboot_lwip_poll(void);
+
 static int net_check_prereq(enum proto_t protocol);
 
 static int net_try_count;
@@ -1177,6 +1181,16 @@ void net_process_received_packet(uchar *in_packet, int len)
 	if (len < ETHER_HDR_SIZE)
 		return;
 
+
+#if defined(CONFIG_LWIP_LIB)
+	if (lwip_enabled()) {
+		if (lwip_loop_is_done())
+			net_set_state(NETLOOP_SUCCESS);
+		uboot_lwip_poll();
+		return;
+	}
+#endif
+
 #if defined(CONFIG_API) || defined(CONFIG_EFI_LOADER)
 	if (push_packet) {
 		(*push_packet)(in_packet, len);
