From d06c40ad19dca10fa0c106be3cffe88ec1f0ea41 Mon Sep 17 00:00:00 2001
From: Neil Alexander <neilalexander@users.noreply.github.com>
Date: Wed, 20 Nov 2019 22:40:48 +0000
Subject: [PATCH] Use existing constant

---
 src/tuntap/tun.go | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/tuntap/tun.go b/src/tuntap/tun.go
index c9a627a..d5bed52 100644
--- a/src/tuntap/tun.go
+++ b/src/tuntap/tun.go
@@ -102,7 +102,7 @@ func DefaultName() string {
 func DefaultMTU() int {
 	ehbytes := 0
 	if DefaultIsTAP() {
-		ehbytes = 14
+		ehbytes = tun_ETHER_HEADER_LENGTH
 	}
 	return defaults.GetDefaults().DefaultIfMTU - ehbytes
 }
@@ -119,7 +119,7 @@ func DefaultIsTAP() bool {
 func MaximumMTU(iftapmode bool) int {
 	ehbytes := 0
 	if iftapmode {
-		ehbytes = 14
+		ehbytes = tun_ETHER_HEADER_LENGTH
 	}
 	return defaults.GetDefaults().MaximumIfMTU - ehbytes
 }