From fd083f1e44e8b28949bc80a2c6290205c3fee76c Mon Sep 17 00:00:00 2001
From: xueyunfei <xueyunfei@espressif.com>
Date: Tue, 22 Sep 2020 17:33:02 +0800
Subject: [PATCH] ipv6 send multicast data fail when src address is null  for
 4.2

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

diff --git a/components/lwip/lwip b/components/lwip/lwip
index f13c986a20..4fd84abace 160000
--- a/components/lwip/lwip
+++ b/components/lwip/lwip
@@ -1 +1 @@
-Subproject commit f13c986a208db54a23104933aef8980de032f1b2
+Subproject commit 4fd84abace0cd8a5a709c194fa54afb3cd39b3f7