Merge branch 'bugfix/change_default_value_for_ip_ttl_5.1' into 'relea…

…se/v5.1' Fix(lwip):bugfix for change default value for ip ttl 5.1 See merge request espressif/esp-idf!28400
espressif · Jan 24, 2024 · c9f2c51 · c9f2c51
2 parents 01f6a7a + 8b16d9b
commit c9f2c51
Show file tree

Hide file tree

Showing 2 changed files with 12 additions and 0 deletions.
diff --git a/components/lwip/Kconfig b/components/lwip/Kconfig
@@ -186,6 +186,13 @@ menu "LWIP"
             Enabling this option allows checking for the destination address
             of a received IPv4 Packet.
 
+    config LWIP_IP_DEFAULT_TTL
+        int "The value for Time-To-Live used by transport layers"
+        range 1 255
+        default 64
+        help
+            Set value for Time-To-Live used by transport layers.
+
     config LWIP_IP4_FRAG
         bool "Enable fragment outgoing IP4 packets"
         default y

diff --git a/components/lwip/port/include/lwipopts.h b/components/lwip/port/include/lwipopts.h
@@ -235,6 +235,11 @@ extern "C" {
  */
 #define IP_REASS_MAX_PBUFS              CONFIG_LWIP_IP_REASS_MAX_PBUFS
 
+/**
+ * IP_DEFAULT_TTL: Default value for Time-To-Live used by transport layers.
+ */
+#define IP_DEFAULT_TTL                   CONFIG_LWIP_IP_DEFAULT_TTL
+
 /*
    ----------------------------------
    ---------- ICMP options ----------