From 0fe7ac0bd78b71eb37fe89c1a145b48eaf9d8179 Mon Sep 17 00:00:00 2001
From: xueyunfei <xueyunfei@espressif.com>
Date: Tue, 22 Sep 2020 17:18:49 +0800
Subject: [PATCH] ipv6 send multicast data fail when src address is null for
 4.0

---
 components/lwip/lwip | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/components/lwip/lwip b/components/lwip/lwip
index 80d6d19a9..4fd84abac 160000
--- a/components/lwip/lwip
+++ b/components/lwip/lwip
@@ -1 +1 @@
-Subproject commit 80d6d19a929c6db577fc44a47fdb4acffdd68933
+Subproject commit 4fd84abace0cd8a5a709c194fa54afb3cd39b3f7