From 753af453eff6556dfba60e4ab0162e94f4032662 Mon Sep 17 00:00:00 2001
From: Matthias Radestock <matthias.radestock@gmail.com>
Date: Thu, 28 Aug 2014 14:17:00 +0100
Subject: [PATCH] fix off-by-14 error in fragmentation This was harmless since
 it simply meant our fragments were not as long as they could be.

---
 forwarder.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/forwarder.go b/forwarder.go
index 7c9c7baa..7a15a25b 100644
--- a/forwarder.go
+++ b/forwarder.go
@@ -129,7 +129,7 @@ func fragment(eth layers.Ethernet, ip layers.IPv4, pmtu int, frame *ForwardedFra
 	headerSize := int(ip.IHL) * 4
 	// &^ is bit clear (AND NOT). So here we're clearing the lowest 3
 	// bits.
-	maxSegmentSize := (pmtu - EthernetOverhead - headerSize) &^ 7
+	maxSegmentSize := (pmtu - headerSize) &^ 7
 	opts := gopacket.SerializeOptions{
 		FixLengths:       false,
 		ComputeChecksums: true}