--- dsr/model/dsr-routing.cc	
+++ dsr/model/dsr-routing.cc	
@@ -3191,1 +3191,1 @@ 
-      Ptr<Packet> propPacket = packet->Copy ();
---
+      Ptr<Packet> propPacket = IncreasePacketRequestId (packet->Copy ());
@@ -3197,1 +3197,1 @@ 
-      ScheduleRreqRetry (packet, address, false, requestId, protocol);
---
+      ScheduleRreqRetry (packet, address, false, m_requestId, protocol);
@@ -3200,0 +3200,59 @@ 
+}
+
+Ptr<Packet>
+DsrRouting::IncreasePacketRequestId (Ptr<Packet> packet)
+{
+  Ptr<Packet> p = packet->Copy ();
+  DsrRoutingHeader dsrHeader;
+  p->RemoveHeader (dsrHeader);          // Remove the DSR header in whole
+  uint32_t offset = dsrHeader.GetDsrOptionsOffset ();   // Get the offset for option header, 8 bytes in this case
+
+  // Remove dsr routing header
+  packet->RemoveAtStart (offset);
+  Ptr<Packet> returnedPacket = Create<Packet> ();
+  // prepare for obtaining rreq header
+  uint8_t buf[2];
+  packet->CopyData (buf, sizeof(buf));
+  uint8_t numberAddress = (buf[1] - 6) / 4;
+  DsrOptionRreqHeader rreq;
+  rreq.SetNumberAddress (numberAddress);
+  packet->RemoveHeader (rreq);
+
+  // Recreate set of headers starting from routing header
+  DsrRoutingHeader dsrRoutingHeader;
+  dsrRoutingHeader.SetNextHeader (dsrHeader.GetNextHeader());
+  dsrRoutingHeader.SetMessageType (dsrHeader.GetMessageType());
+  dsrRoutingHeader.SetSourceId (dsrHeader.GetSourceId());
+  dsrRoutingHeader.SetDestId (dsrHeader.GetDestId());
+  // recreate rreq header
+  DsrOptionRreqHeader rreqHeader;
+  rreqHeader.AddNodeAddress (m_mainAddress);    // Add our own address in the header
+  rreqHeader.SetTarget (rreq.GetTarget());
+  m_requestId = m_rreqTable->CheckUniqueRreqId (rreq.GetTarget());      // Check the Id cache for duplicate ones
+  rreqHeader.SetId(m_requestId);        // assign new request ID
+  // in case there is an error header, also add it to the set of copied headers
+  if (packet->GetSize())
+    {
+      NS_LOG_DEBUG("Error header included");
+      DsrOptionRerrUnreachHeader rerr;  // recreate error header
+      packet->RemoveHeader(rerr);
+
+      DsrOptionRerrUnreachHeader newUnreach;
+      newUnreach.SetErrorType (rerr.GetErrorType());
+      newUnreach.SetErrorSrc (rerr.GetErrorSrc());
+      newUnreach.SetUnreachNode (rerr.GetUnreachNode());
+      newUnreach.SetErrorDst (rerr.GetErrorDst());
+      newUnreach.SetSalvage (rerr.GetSalvage ()); // Set the value about whether to salvage a packet or not
+      uint16_t length = rreq.GetLength () + newUnreach.GetLength ();
+      dsrRoutingHeader.SetPayloadLength (length + 4);
+      dsrRoutingHeader.AddDsrOption (rreq);
+      dsrRoutingHeader.AddDsrOption (newUnreach);
+    }
+  else
+    {
+      dsrRoutingHeader.AddDsrOption (rreqHeader);                      // Add the rreqHeader to the dsr extension header
+      uint8_t length = rreqHeader.GetLength ();
+      dsrRoutingHeader.SetPayloadLength (uint16_t (length) + 2);
+    }
+  returnedPacket->AddHeader (dsrRoutingHeader);
+  return returnedPacket;
--- dsr/model/dsr-routing.h	
+++ dsr/model/dsr-routing.h	
@@ -644,1 +644,7 @@ 
-
---
+  /**
+   * Increase route request packet ID number, while copying all necessary headers
+   * Method called inside RouteRequestTimerExpire
+   *
+   * \param packet Packet, from which DsrRouting, DsrOptionRreq and DsrOptionRerrUnreach headers are copied
+   */
+  Ptr<Packet> IncreasePacketRequestId (Ptr<Packet> packet);