diff --git a/0123-opts-modify-MEMP_NUM_UDP_PCB.patch b/0123-opts-modify-MEMP_NUM_UDP_PCB.patch
new file mode 100644
index 0000000..fb34e0c
--- /dev/null
+++ b/0123-opts-modify-MEMP_NUM_UDP_PCB.patch
@@ -0,0 +1,22 @@
+From 226fbb87dcf266d165962f1d87f9c4c5d4ea8e2d Mon Sep 17 00:00:00 2001
+From: yinbin6 <yinbin8@huawei.com>
+Date: Thu, 11 Apr 2024 15:07:47 +0800
+Subject: [PATCH] opts: modify MEMP_NUM_UDP_PCB
+
+
+diff --git a/src/include/lwipopts.h b/src/include/lwipopts.h
+index 62573f5..4655388 100644
+--- a/src/include/lwipopts.h
++++ b/src/include/lwipopts.h
+@@ -192,7 +192,7 @@
+ 
+ #define UDP_HLEN 8
+ 
+-#define MEMP_NUM_UDP_PCB 16
++#define MEMP_NUM_UDP_PCB (GAZELLE_MAX_CLIENTS + GAZELLE_RESERVED_CLIENTS)
+ #define MEMP_NUM_IGMP_GROUP 16
+ 
+ #define DEFAULT_UDP_RECVMBOX_SIZE 4096
+-- 
+2.33.0
+
diff --git a/lwip.spec b/lwip.spec
index 226752a..f86220e 100644
--- a/lwip.spec
+++ b/lwip.spec
@@ -4,7 +4,7 @@
 Summary: lwip is a small independent implementation of the TCP/IP protocol suite
 Name:    lwip
 Version: 2.2.0
-Release: 15
+Release: 16
 License: BSD
 URL:     http://savannah.nongnu.org/projects/lwip/
 Source0: http://download.savannah.nongnu.org/releases/lwip/%{name}-%{version}.zip
@@ -134,6 +134,7 @@ Patch9118:  0119-support-igmpv3.patch
 Patch9119:  0120-enable-SO_REUSE_RXTOALL.patch
 Patch9120:  0121-add-vlan-filter.patch
 Patch9121:  0122-support-mldv2.patch
+Patch9122:  0123-opts-modify-MEMP_NUM_UDP_PCB.patch 
 
 BuildRequires: gcc-c++ dos2unix dpdk-devel
 
@@ -163,6 +164,9 @@ cd %{_builddir}/%{name}-%{version}/src
 %{_libdir}/liblwip.a
 
 %changelog
+* Thu Apr 11 2024 yinbin <yinbin8@huawei.com> - 2.2.0-16
+- opts: modify MEMP_NUM_UDP_PCB
+
 * Tue Apr 09 2024 wanfeng <wanfeng@kylinos.cn> - 2.2.0-15
 - add ipv6 mldv2 multicast protocol