1 files changed, 2 insertions, 1 deletions

diff --git a/net/ipv4/ipip.c b/net/ipv4/ipip.c
index c05c1df0bb04..35571cff81c6 100644
--- a/net/ipv4/ipip.c
+++ b/net/ipv4/ipip.c
@@ -108,6 +108,7 @@
 #include <linux/mroute.h>
 #include <linux/init.h>
 #include <linux/netfilter_ipv4.h>
+#include <linux/if_ether.h>
 
 #include <net/sock.h>
 #include <net/ip.h>
@@ -786,7 +787,7 @@ static void ipip_tunnel_setup(struct net_device *dev)
 
         dev->type               = ARPHRD_TUNNEL;
         dev->hard_header_len    = LL_MAX_HEADER + sizeof(struct iphdr);
-        dev->mtu                = 1500 - sizeof(struct iphdr);
+        dev->mtu                = ETH_DATA_LEN - sizeof(struct iphdr);
         dev->flags              = IFF_NOARP;
         dev->iflink             = 0;
         dev->addr_len           = 4;