diff --git a/RELEASE_NOTES b/RELEASE_NOTES
index 858ccd050..d05e3c633 100644
--- a/RELEASE_NOTES
+++ b/RELEASE_NOTES
@@ -36,6 +36,7 @@ Bugs fixed
 - Bug 2077 - Icmpv6L4Protocol::HandleDestinationUnreachable must check the packet size, not its serialized size
 - Bug 2079 - mcs variable in ht-wifi-network example is confusing
 - Bug 2083 - BridgeNetDevice may send corrupted packets
+- Bug 2090 - (rip-ng) Routes may be added twice on interface activation
 
 Known issues
 ------------
diff --git a/src/internet/model/ripng.cc b/src/internet/model/ripng.cc
index 0e4b013b9..4cd76e3ff 100644
--- a/src/internet/model/ripng.cc
+++ b/src/internet/model/ripng.cc
@@ -321,10 +321,6 @@ void RipNg::NotifyInterfaceUp (uint32_t i)
     {
       Ipv6InterfaceAddress address = m_ipv6->GetAddress (i, j);
 
-      Ipv6Address networkAddress = address.GetAddress ().CombinePrefix (address.GetPrefix ());
-      Ipv6Prefix networkMask = address.GetPrefix ();
-      AddNetworkRouteTo (networkAddress, networkMask, i);
-
       if (address.GetScope() == Ipv6InterfaceAddress::LINKLOCAL && sendSocketFound == false && activeInterface == true)
         {
           NS_LOG_LOGIC ("RIPng: adding sending socket to " << address.GetAddress ());