Devi G
October 29th, 2009 - 02:54

Respected Sir,
One humble ques.. How long did it take for u to work in NS confidently and are there any specific works that help us explore it safely?
Awaiting ur reply

shen.wen
December 10th, 2009 - 11:57

I modified aodv.cc and aodv.h as you demonstrate above,while run the aodv script ,
ns: _o112 hacker:
(_o112 cmd line 1)
invoked from within
“_o112 cmd hacker”
invoked from within
“catch “$self cmd $args” ret”
invoked from within
“if [catch "$self cmd $args" ret] {
set cls [$self info class]
global errorInfo
set savedInfo $errorInfo
error “error when calling class $cls: $args” $…”
(procedure “_o112″ line 2)
(SplitObject unknown line 2)
invoked from within
“_o112 hacker”

what is the meaning of this?

Resmy
February 2nd, 2010 - 17:10

Sir i too tried to modify the codes in aodv.cc and aodv.h to introduce malicious nodes..
But the same error what Mehdi told occured again whyI made the modification u told
but its not working…..can u plz reply..

irvan
March 17th, 2010 - 15:50

Dear Sir
Im student from Indonesia, i want to make my final project in modifying ad hoc routing protocol too
In what u have done? do you have such literature of your project above to improve my knowledge
im starting to understand how aodv work by studying its C++ code

Thank for your help

Ashwin Perti
March 23rd, 2010 - 18:01

When make command is executed it is giving the following error:
allinone-2.34/lib -ltk8.4 -L/home/ashwin/ns-allinone-2.34/lib -ltcl8.4 -lXext -lX11 -lnsl -ldl -lm -lm
trace/cmu-trace.o: In function `hdr_raodv::access(Packet const*)’:
cmu-trace.cc:(.text._ZN9hdr_raodv6accessEPK6Packet[hdr_raodv::access(Packet const*)]+0×7): undefined reference to `hdr_raodv::offset_’
collect2: ld returned 1 exit status
make: *** [ns] Error 1

tim
April 5th, 2010 - 12:46

Hi,smartnode

I modified the aodv.cc & aodv.h & aodv_802_15_4.tcl according to your method above.
However, I meet the same problem with the Dr.MEHDI.

num_nodes is set 500
INITIALIZE THE LIST xListHead
ns: _o112 hacker:
(_o112 cmd line 1)
invoked from within
“_o112 cmd hacker”
invoked from within
“catch “$self cmd $args” ret”
invoked from within
“if [catch "$self cmd $args" ret] {
set cls [$self info class]
global errorInfo
set savedInfo $errorInfo
error “error when calling class $cls: $args” $…”
(procedure “_o112″ line 2)
(SplitObject unknown line 2)
invoked from within
“_o112 hacker”

meanwhile, I indeed add the

if(strcmp(argv[1], “hacker”) == 0) {
malicious = true;
return TCL_OK;
}

to the aodv.cc , but the same problem shown above.

otherwise, I also use the make clean, and make to launch, however, same problem shown above

thanks a lot!

tim
April 5th, 2010 - 17:46

yes, on the line 86.

AODV::command(int argc, const char*const* argv) {
if(argc == 2) {
Tcl& tcl = Tcl::instance();

if(strncasecmp(argv[1], “id”, 2) == 0) {
tcl.resultf(”%d”, index);
return TCL_OK;
}

// ABOVE CODE GOES HERE :
if(strcmp(argv[1], “hacker”) == 0) {
malicious = true;
return TCL_OK;
}

if(strncasecmp(argv[1], “start”, 2) == 0) {
btimer.handle((Event*) 0);

#ifndef AODV_LINK_LAYER_DETECTION
htimer.handle((Event*) 0);
ntimer.handle((Event*) 0);
#endif // LINK LAYER DETECTION

it is so confusion.

By the way, Mr. smartnode,

I want to get the traffic data of the normal sensor networks , is your aodv-802-15-4.tcl avaiable?

meanwhile, I need the traffic data of the sensor networks that has a wormhole attack or others,just want to get the attacked status, Could you please give me some suggestions for this simulation? I feel very difficult.

jin
April 8th, 2010 - 09:36

I experienced same problem with tim.
I installed ns 2.33
I exactly placed if(strcmp(argv[1], “hacker”)==0){…} structure in the right place line86.
What is the problem?

rohitkg
April 8th, 2010 - 09:38

i want to make a node behave as blackhole node, using the above technique. The above method drops all packets that go through it, but it doesn’t kind of forces a packet to go through it by sending a high sequence number.
For that, i have done this within this fn. AODV::recvRequest(Packet *p):

if(malicious==true) {
sendReply(rq->rq_src, // IP Destination
1, // Hop Count
index, // Dest IP Address
4294967295, // Max. Dest Sequence Num if the node is malicious
MY_ROUTE_TIMEOUT, // Lifetime
rq->rq_timestamp); // timestamp
}
else {
sendReply(rq->rq_src, // IP Destination
1, // Hop Count
index, // Dest IP Address
seqno, // Dest Sequence Num
MY_ROUTE_TIMEOUT, // Lifetime
rq->rq_timestamp); // timestamp
}

and removed
if(malicious == true) {
drop(p, DROP_RTR_ROUTE_LOOP);
}

from rt_resolve() fn.

Now, what changes do i need to make, so that the code can distinguish data packets and management packets, so that it could drop the data packets.

Raj
April 12th, 2010 - 11:01

hello smartnode

Kindly help in implementing watchdog concept please

velkan
April 18th, 2010 - 17:42

thank u i have done it.
i had the same problem with tim,
add the
if(strcmp(argv[1], “hacker”) == 0) {
malicious = true;
return TCL_OK;
}
to aodv.cc and the same error

but now i found the answer for we should make sure that we use the new compiled ns to run the .tcl