diff --git a/Project/Src/rt-thread/components/net/lwip-2.1.0/src/api/tcpip.c b/Project/Src/rt-thread/components/net/lwip-2.1.0/src/api/tcpip.c
index 743553a..b0382e8 100644
--- a/Project/Src/rt-thread/components/net/lwip-2.1.0/src/api/tcpip.c
+++ b/Project/Src/rt-thread/components/net/lwip-2.1.0/src/api/tcpip.c
@@ -519,7 +519,7 @@ tcpip_api_call(tcpip_api_call_fn fn, struct tcpip_api_call_data *call)
  * e.g. the message is allocated once and posted several times from an IRQ
  * using tcpip_callbackmsg_trycallback().
  * Example usage: Trigger execution of an ethernet IRQ DPC routine in lwIP thread context.
- * 
+ *
  * @param function the function to call
  * @param ctx parameter passed to function
  * @return a struct pointer to pass to tcpip_callbackmsg_trycallback().
diff --git a/Project/Src/rt-thread/components/net/lwip-2.1.0/src/arch/include/arch/cc.h b/Project/Src/rt-thread/components/net/lwip-2.1.0/src/arch/include/arch/cc.h
index 77a5892..17736ed 100644
--- a/Project/Src/rt-thread/components/net/lwip-2.1.0/src/arch/include/arch/cc.h
+++ b/Project/Src/rt-thread/components/net/lwip-2.1.0/src/arch/include/arch/cc.h
@@ -40,10 +40,10 @@
 
 #define U16_F "hu"
 #define S16_F "hd"
-#define X16_F "hx"
+// #define X16_F "hx"
 #define U32_F "lu"
 #define S32_F "ld"
-#define X32_F "lx"
+#define X32_F "08x"
 
 #ifdef RT_USING_LIBC
 #if defined(__CC_ARM) || defined(__CLANG_ARM) || defined(__IAR_SYSTEMS_ICC__)
@@ -97,7 +97,7 @@ void sys_arch_assert(const char* file, int line);
 
 #include "string.h"
 
-#define SYS_ARCH_DECL_PROTECT(level)	
+#define SYS_ARCH_DECL_PROTECT(level)
 #define SYS_ARCH_PROTECT(level)		rt_enter_critical()
 #define SYS_ARCH_UNPROTECT(level) 	rt_exit_critical()
 
diff --git a/Project/Src/rt-thread/components/net/lwip-2.1.0/src/core/ipv4/etharp.c b/Project/Src/rt-thread/components/net/lwip-2.1.0/src/core/ipv4/etharp.c
index 442aac0..a5480c8 100644
--- a/Project/Src/rt-thread/components/net/lwip-2.1.0/src/core/ipv4/etharp.c
+++ b/Project/Src/rt-thread/components/net/lwip-2.1.0/src/core/ipv4/etharp.c
@@ -423,7 +423,7 @@ etharp_update_arp_entry(struct netif *netif, const ip4_addr_t *ipaddr, struct et
 {
   s16_t i;
   LWIP_ASSERT("netif->hwaddr_len == ETH_HWADDR_LEN", netif->hwaddr_len == ETH_HWADDR_LEN);
-  LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE, ("etharp_update_arp_entry: %"U16_F".%"U16_F".%"U16_F".%"U16_F" - %02"X16_F":%02"X16_F":%02"X16_F":%02"X16_F":%02"X16_F":%02"X16_F"\n",
+  LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE, ("etharp_update_arp_entry: %"U16_F".%"U16_F".%"U16_F".%"U16_F" - %"X8_F":%"X8_F":%"X8_F":%"X8_F":%"X8_F":%"X8_F"\n",
               ip4_addr1_16(ipaddr), ip4_addr2_16(ipaddr), ip4_addr3_16(ipaddr), ip4_addr4_16(ipaddr),
               (u16_t)ethaddr->addr[0], (u16_t)ethaddr->addr[1], (u16_t)ethaddr->addr[2],
               (u16_t)ethaddr->addr[3], (u16_t)ethaddr->addr[4], (u16_t)ethaddr->addr[5]));
diff --git a/Project/Src/rt-thread/components/net/lwip-2.1.0/src/core/ipv4/ip4.c b/Project/Src/rt-thread/components/net/lwip-2.1.0/src/core/ipv4/ip4.c
index ed8ebe3..9248f4f 100644
--- a/Project/Src/rt-thread/components/net/lwip-2.1.0/src/core/ipv4/ip4.c
+++ b/Project/Src/rt-thread/components/net/lwip-2.1.0/src/core/ipv4/ip4.c
@@ -1096,7 +1096,7 @@ ip4_debug_print(struct pbuf *p)
 
   LWIP_DEBUGF(IP_DEBUG, ("IP header:\n"));
   LWIP_DEBUGF(IP_DEBUG, ("+-------------------------------+\n"));
-  LWIP_DEBUGF(IP_DEBUG, ("|%2"S16_F" |%2"S16_F" |  0x%02"X16_F" |     %5"U16_F"     | (v, hl, tos, len)\n",
+  LWIP_DEBUGF(IP_DEBUG, ("|%2"S16_F" |%2"S16_F" |  0x%"X16_F" |    %5"U16_F"    | (v, hl, tos, len)\n",
                          (u16_t)IPH_V(iphdr),
                          (u16_t)IPH_HL(iphdr),
                          (u16_t)IPH_TOS(iphdr),
@@ -1109,7 +1109,7 @@ ip4_debug_print(struct pbuf *p)
                          (u16_t)(lwip_ntohs(IPH_OFFSET(iphdr)) >> 13 & 1),
                          (u16_t)(lwip_ntohs(IPH_OFFSET(iphdr)) & IP_OFFMASK)));
   LWIP_DEBUGF(IP_DEBUG, ("+-------------------------------+\n"));
-  LWIP_DEBUGF(IP_DEBUG, ("|  %3"U16_F"  |  %3"U16_F"  |    0x%04"X16_F"     | (ttl, proto, chksum)\n",
+  LWIP_DEBUGF(IP_DEBUG, ("|  %3"U16_F"  |  %3"U16_F"  |    0x%"X16_F"     | (ttl, proto, chksum)\n",
                          (u16_t)IPH_TTL(iphdr),
                          (u16_t)IPH_PROTO(iphdr),
                          lwip_ntohs(IPH_CHKSUM(iphdr))));
diff --git a/Project/Src/rt-thread/components/net/lwip-2.1.0/src/core/udp.c b/Project/Src/rt-thread/components/net/lwip-2.1.0/src/core/udp.c
index 9d2cb4a..5feb52b 100644
--- a/Project/Src/rt-thread/components/net/lwip-2.1.0/src/core/udp.c
+++ b/Project/Src/rt-thread/components/net/lwip-2.1.0/src/core/udp.c
@@ -911,7 +911,7 @@ udp_sendto_if_src_chksum(struct udp_pcb *pcb, struct pbuf *p, const ip_addr_t *d
 /**
  * @ingroup udp_raw
  * Bind an UDP PCB.
- * 
+ *
  * @param pcb UDP PCB to be bound with a local address ipaddr and port.
  * @param ipaddr local IP address to bind with. Use IP_ANY_TYPE to
  * bind to all local interfaces.
@@ -1168,8 +1168,8 @@ udp_recv(struct udp_pcb *pcb, udp_recv_fn recv, void *recv_arg)
 
 /**
  * @ingroup udp_raw
- * Removes and deallocates the pcb.  
- * 
+ * Removes and deallocates the pcb.
+ *
  * @param pcb UDP PCB to be removed. The PCB is removed from the list of
  * UDP PCB's and the data structure is freed from memory.
  *
@@ -1242,7 +1242,7 @@ udp_new(void)
  * Create a UDP PCB for specific IP type.
  * The pcb is not active until it has either been bound to a local address
  * or connected to a remote address.
- * 
+ *
  * @param type IP address type, see @ref lwip_ip_addr_type definitions.
  * If you want to listen to IPv4 and IPv6 (dual-stack) packets,
  * supply @ref IPADDR_TYPE_ANY as argument and bind to @ref IP_ANY_TYPE.
@@ -1305,7 +1305,7 @@ udp_debug_print(struct udp_hdr *udphdr)
   LWIP_DEBUGF(UDP_DEBUG, ("|     %5"U16_F"     |     %5"U16_F"     | (src port, dest port)\n",
                           lwip_ntohs(udphdr->src), lwip_ntohs(udphdr->dest)));
   LWIP_DEBUGF(UDP_DEBUG, ("+-------------------------------+\n"));
-  LWIP_DEBUGF(UDP_DEBUG, ("|     %5"U16_F"     |     0x%04"X16_F"    | (len, chksum)\n",
+  LWIP_DEBUGF(UDP_DEBUG, ("|     %5"U16_F"     |     0x%"X16_F"    | (len, chksum)\n",
                           lwip_ntohs(udphdr->len), lwip_ntohs(udphdr->chksum)));
   LWIP_DEBUGF(UDP_DEBUG, ("+-------------------------------+\n"));
 }
diff --git a/Project/Src/rt-thread/components/net/lwip-2.1.0/src/include/lwip/arch.h b/Project/Src/rt-thread/components/net/lwip-2.1.0/src/include/lwip/arch.h
index 58dae33..fb5cab7 100644
--- a/Project/Src/rt-thread/components/net/lwip-2.1.0/src/include/lwip/arch.h
+++ b/Project/Src/rt-thread/components/net/lwip-2.1.0/src/include/lwip/arch.h
@@ -74,7 +74,7 @@
 
 /** Platform specific diagnostic output.\n
  * Note the default implementation pulls in printf, which may
- * in turn pull in a lot of standard libary code. In resource-constrained 
+ * in turn pull in a lot of standard libary code. In resource-constrained
  * systems, this should be defined to something less resource-consuming.
  */
 #ifndef LWIP_PLATFORM_DIAG
@@ -85,7 +85,7 @@
 
 /** Platform specific assertion handling.\n
  * Note the default implementation pulls in printf, fflush and abort, which may
- * in turn pull in a lot of standard libary code. In resource-constrained 
+ * in turn pull in a lot of standard libary code. In resource-constrained
  * systems, this should be defined to something less resource-consuming.
  */
 #ifndef LWIP_PLATFORM_ASSERT
@@ -147,7 +147,7 @@ typedef uintptr_t mem_ptr_t;
 #if !LWIP_NO_INTTYPES_H
 #include <inttypes.h>
 #ifndef X8_F
-#define X8_F  "02" PRIx8
+#define X8_F  "02x"
 #endif
 #ifndef U16_F
 #define U16_F PRIu16
@@ -156,7 +156,7 @@ typedef uintptr_t mem_ptr_t;
 #define S16_F PRId16
 #endif
 #ifndef X16_F
-#define X16_F PRIx16
+#define X16_F "04x"
 #endif
 #ifndef U32_F
 #define U32_F PRIu32
diff --git a/Project/Src/rt-thread/components/net/lwip-2.1.0/src/netif/ethernet.c b/Project/Src/rt-thread/components/net/lwip-2.1.0/src/netif/ethernet.c
index dd171e2..8d093b9 100644
--- a/Project/Src/rt-thread/components/net/lwip-2.1.0/src/netif/ethernet.c
+++ b/Project/Src/rt-thread/components/net/lwip-2.1.0/src/netif/ethernet.c
@@ -85,6 +85,7 @@ ethernet_input(struct pbuf *p, struct netif *netif)
 #if LWIP_ARP || ETHARP_SUPPORT_VLAN || LWIP_IPV6
   u16_t next_hdr_offset = SIZEOF_ETH_HDR;
 #endif /* LWIP_ARP || ETHARP_SUPPORT_VLAN */
+  LWIP_DEBUGF(ETHARP_DEBUG, ("recv %d bytes\n", p->len));
 
   LWIP_ASSERT_CORE_LOCKED();
 
diff --git a/Project/Src/rt-thread/rtconfig.h b/Project/Src/rt-thread/rtconfig.h
index 07a2c30..b28235f 100644
--- a/Project/Src/rt-thread/rtconfig.h
+++ b/Project/Src/rt-thread/rtconfig.h
@@ -217,7 +217,16 @@
 #define RT_USING_LIBC
 #define RT_LWIP_TCP
 #define RT_LWIP_UDP
+#define RT_LWIP_ICMP
 #define RT_LWIP_DEBUG
+#define RT_LWIP_TCPIP_DEBUG
+#define RT_LWIP_NETIF_DEBUG
+#define RT_LWIP_ETHARP_DEBUG
+#define RT_LWIP_IP_DEBUG
+#define RT_LWIP_UDP_DEBUG
+#define RT_LWIP_DHCP
+#define RT_LWIP_IGMP
+#define RT_LWIP_RAW
 
 // <<< end of configuration section >>>