PRINTING ROUTING TABLE IN TERMINAL

Here, we are going to generate routing tables IN  for tcl scripts by modifying AODV protocol. For that we have to modify following files in the AODV directory[for AODV directory look at ns2.35 folder];

1. aodv.h 
2. aodv.cc

1. aodv.h modification

First display aodv.h file and then add the following lines inside the class AODV in the protected scope Add the line after the rt_down() function.

void rt_print(nsaddr_t nodeid);

Save the aodv.h file and

2. aodv.cc modification

Now click on aodv.cc file and select display option,

Now add the following function rt_print to the aodv.cc file probably below rt_down function.

void  AODV::rt_print(nsaddr_t nodeid) {
aodv_rt_entry *rt;
printf("Node id \t time \t destination \t nexthop \t hop count \t seq.no\n");
for (rt=rtable.head();rt; rt = rt->rt_link.le_next) {
printf("NODE: %i \t %f \t %i \t %i \t \t %i \t \t %i \n", nodeid, CURRENT_TIME, rt->rt_dst, rt->rt_nexthop, rt->rt_hops, rt->rt_seqno);
}
}

Now finally we have to call the function that we written above,we can call it in any part of protocol. Here we are going to call inside recvReply() function.

For that we have to write following line inside if (ih->daddr() == index);

 rt_print(index);

After completing these steps.Open the terminal window and change the directory to the ns2.35 by using following command.

cd /home/user/Desktop/ns-allinone-2.35/ns-2.35 [change path as yours]

and now type 

                                                                     make clean 

then type

                                                                         make

then type

                                                               sudo make install

After successful completion of steps.Run a sample program.

For sample program,click here  and run the program using command ns filename.tcl

Screen shot