Disabling NACKs by default
diff --git a/model/ccnx-l3-protocol.cc b/model/ccnx-l3-protocol.cc
index da7ad29..f87a990 100644
--- a/model/ccnx-l3-protocol.cc
+++ b/model/ccnx-l3-protocol.cc
@@ -76,7 +76,7 @@
MakePointerChecker<CcnxForwardingStrategy> ())
.AddAttribute ("EnableNACKs", "Enabling support of NACKs",
- BooleanValue (true),
+ BooleanValue (false),
MakeBooleanAccessor (&CcnxL3Protocol::m_nacksEnabled),
MakeBooleanChecker ())
.AddAttribute ("CacheUnsolicitedData", "Cache overheard data that have not been requested",