From a45be9e438f6cf9c54ec150581819c3b95d5af6b Mon Sep 17 00:00:00 2001
From: xueyunfei <xueyunfei@espressif.com>
Date: Mon, 27 Nov 2023 17:24:37 +0800
Subject: [PATCH] feat(lwip):add fall back dns config in menuconfig

---
 src/core/dns.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/core/dns.c b/src/core/dns.c
index 29b3b173..c7940451 100644
--- a/src/core/dns.c
+++ b/src/core/dns.c
@@ -325,7 +325,7 @@ dns_init(void)
   /* initialize fallback dns DNS server address */
   ip_addr_t dnsserver;
   FALLBACK_DNS_SERVER_ADDRESS(&dnsserver);
-#if LWIP_IPV4 && LWIP_IPV6
+#if LWIP_IPV4 && LWIP_IPV6 && ESP_LWIP_FALLBACK_DNS_PREFER_IPV4
   dnsserver.type = IPADDR_TYPE_V4;
 #endif
   dns_setserver(DNS_FALLBACK_SERVER_INDEX, &dnsserver);