From 8a479cc2caf52045e2a56b6907d145bf0b4c7697 Mon Sep 17 00:00:00 2001
From: zhanghongyu <zhanghongyu@xiaomi.com>
Date: Wed, 15 Nov 2023 17:45:26 +0800
Subject: [PATCH] igmp: call IFF_SET_IPv4 when igmp_send

If the flag is not set, The flag is affected by the previously sent and
received packets, L2 header may be filled with ipv6

Signed-off-by: zhanghongyu <zhanghongyu@xiaomi.com>
---
 net/igmp/igmp_send.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/net/igmp/igmp_send.c b/net/igmp/igmp_send.c
index 378f3fbc44b..8ce28a905f7 100644
--- a/net/igmp/igmp_send.c
+++ b/net/igmp/igmp_send.c
@@ -116,6 +116,10 @@ void igmp_send(FAR struct net_driver_s *dev, FAR struct igmp_group_s *group,
       return;
     }
 
+  /* Select IPv4 */
+
+  IFF_SET_IPv4(dev->d_flags);
+
   /* The IGMP header immediately follows the IP header */
 
   iphdrlen          = IPv4_HDRLEN + RASIZE;