From 1eb07aeaef9b89ee1de9be0c4789cf0c54473ad1 Mon Sep 17 00:00:00 2001
From: Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
Date: Wed, 4 Jun 2008 10:39:36 -0700
Subject: [PATCH] bug 208: must clear flags bits in fragment offset
 deserialization.

---
 src/node/ipv4-header.cc | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/node/ipv4-header.cc b/src/node/ipv4-header.cc
index 5a360e6de..884bbba7e 100644
--- a/src/node/ipv4-header.cc
+++ b/src/node/ipv4-header.cc
@@ -300,9 +300,8 @@ Ipv4Header::Deserialize (Buffer::Iterator start)
     {
       m_flags |= MORE_FRAGMENTS;
     }
-  //XXXX I think we should clear some bits in fragmentOffset !
   i.Prev ();
-  m_fragmentOffset = i.ReadNtohU16 ();
+  m_fragmentOffset = i.ReadNtohU16 () & 0xfff8;
   m_fragmentOffset *= 8;
   m_ttl = i.ReadU8 ();
   m_protocol = i.ReadU8 ();