From 4d7c3570a6cd057cb131d53c19edae8258ed914f Mon Sep 17 00:00:00 2001
From: Lennart Poettering <lennart@poettering.net>
Date: Fri, 20 Apr 2018 16:18:09 +0200
Subject: [PATCH] missing: add IPV4_MIN_MTU

Similar to IPV6_MIN_MTU, let's add the same for IPv4.
---
 src/basic/missing.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/basic/missing.h b/src/basic/missing.h
index 953b0f413e..9fe750ae28 100644
--- a/src/basic/missing.h
+++ b/src/basic/missing.h
@@ -1057,6 +1057,10 @@ struct input_mask {
 #define IPV6_MIN_MTU 1280
 #endif
 
+#ifndef IPV4_MIN_MTU
+#define IPV4_MIN_MTU 68
+#endif
+
 #ifndef IFF_MULTI_QUEUE
 #define IFF_MULTI_QUEUE 0x100
 #endif
-- 
2.25.1