[ns] Capturing Packets

[Mubashir Rehmani]

Hi Scharan

You just need to modify the recv function of each protocol that you need to
capture the packets for.

You need to declare a header file
#include<fstream.h>

ofstream DRN("abc.tr"); //your output file

Then in the recv() function, you will just do this:

struct hdr aodv reply * rp = HDR_AODV_REPLY(p); //declare the header

DRN<<rp->rp_dst <<endl; //it will print the header in the output file (
abc.tr). In this way, you will dump all the contents of the packet that you
have captured or dropped.

Regards
Mubashir Husain Rehmani

2009/3/2 scharan <scharan20 at gmail.com>

>
>
> Thanks!
> I have the following clarification:
>
> Do I have to reimplement recv() function for each protocol that I need to
> capture the packets for? Can u provide some examples or links to some
> examples on how this should be done?
>
> - scharan.
>
>
> Mubashir Rehmani wrote:
> >
> >
> > Hi Sri Charan,
> >
> > Yes it is possible. You need to work in the recv() packet function and
> > dump
> > the contents of all the packet in the trace file.
> >
> > Regards
> >
> > Mubashir Husain Rehmani
> > ASAP/INRIA and LIP6, UPMC
> > www-rp.lip6.fr/~rehmani <http://www-rp.lip6.fr/%7Erehmani> <
> http://www-rp.lip6.fr/%7Erehmani>
> > http://www.irisa.fr/asap/Members/mrehmani/Mubashir
> >
> >
> > 2009/3/2 Sri Charan <scharan20 at gmail.com>
> >
> >>
> >> Hi,
> >>
> >> I need to capture each packet arriving at each node in the network (in
> >> order
> >> to calculate a hash on the *whole* packet, not just its header). Another
> >> way
> >> to ask this is that I need to sniff the packet as it arrives at each
> node
> >> and save/dump it to a file. Is this possible in NS2? If yes, how?
> >>
> >> - scharan.
> >>
> >
> >
> >
> > --
> > Mubashir Husain Rehmani
> >
> >
>
> --
> View this message in context:
> http://www.nabble.com/Capturing-Packets-tp22281401p22283043.html
> Sent from the ns-users mailing list archive at Nabble.com.
>
>


-- 
Mubashir Husain Rehmani