[ns] invalid _AODV packet type

[sarym binome]

hello
i introduce a new packet in AODV protocol
#define AODVTYPE_HELLO1      0x12

and i create a functions (sendhello1 and recvhello1) , i use a timer to shedule this task , 
when i run a tcl script, i've got these errors 

 send hello1
 send hello1
format_aodv: invalid _AODV packet type  

so i think that a packet is sent twice but when it is received it isn't recognized , cause  if it folow the recv function (look at bold lines only)

void
AODV::recvAODV(Packet *p) {
 struct hdr_aodv *ah = HDR_AODV(p);
 assert(HDR_IP (p)->sport() == RT_PORT);
 assert(HDR_IP (p)->dport() == RT_PORT);

 /*
  * Incoming Packets.
  */
 switch(ah->ah_type) {

 case AODVTYPE_RREQ:
   recvRequest(p);
   break;
.......
......
 case AODVTYPE_HELLO1:
    recvHello1(p);
    break;

 default:
   fprintf(stderr, "Invalid AODV type (%x)\n", ah->ah_type);
   exit(1);
 }

}

it dosen't take the case AODVTYPE_HELLO1.....it's strange , isn't it????????????????
what about the file CMUtrace , must i change it ??? to avoid this error?
cause when i change the message fprintf(stderr, "Invalid AODV type (%x)\n", ah->ah_type); to fprintf(stderr, " may be here (%x)\n", ah->ah_type);
i had exactly the first error message  format_aodv: invalid _AODV packet type  
i find that the message was not from this procedure . i'm really surprised!!!

somebody help me please! 
best regards

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