diff -r 546428b33c04 src/applications/radvd/radvd.cc
--- a/src/applications/radvd/radvd.cc	Thu Dec 03 09:19:04 2009 +0100
+++ b/src/applications/radvd/radvd.cc	Fri Dec 04 10:02:34 2009 +0100
@@ -208,6 +208,13 @@
   raHdr.CalculatePseudoHeaderChecksum (src, dst, p->GetSize () + raHdr.GetSerializedSize (), 58 /* ICMPv6 */);
   p->AddHeader (raHdr);
 
+  /* Router advertisements MUST always have a ttl of 255
+   * The ttl value should be set as a socket option, but this is not yet implemented
+   */
+  SocketIpTtlTag ttl;
+  ttl.SetTtl(255);
+  p->AddPacketTag(ttl);
+
   /* send RA */
   NS_LOG_LOGIC ("Send RA");
   m_socket->Send (p, 0);