Bug 2110

Summary: vanet-routing-compare with no routing still sending RREQ
Product: ns-3 Reporter: Scott Carpenter <scarpen>
Component: wave moduleAssignee: ns-bugs <ns-bugs>
Status: RESOLVED FIXED    
Severity: minor CC: ns-bugs, tomh, tommaso.pecorella
Priority: P5    
Version: ns-3-dev   
Hardware: All   
OS: All   
Attachments: patch

Description Scott Carpenter 2015-05-04 08:37:07 UTC 
When executing the vanet-routing-compare script with internet routing disabled (i.e., --run "src/wave/examples/vanet-routing-compare --protocol=0", there are still RREQ msgs being sent.

I think this is a bug.  (Or maybe it is a feature).  For IP-routing, the internet stack is installed onto every node.  However, with routing disabled by --protocol=0, no data is then submitted for routing through the network.  However, this doesn't seem to be preventing the initial route request messages from being sent (RREQ).  However, I think they are unanswered (i.e., no RREP).  Nonetheless, this is unnecessary overhead.

Furthermore, the use of IP addresses is used to determine the sender node for every received packet.  An alternative would be to instead use the MAC address to resolve sender / receiver, but this will require some refactoring of the code.
Comment 1 Tom Henderson 2015-05-04 15:04:27 UTC 
assigning to aodv component (seems to be more of an aodv issue)
Comment 2 Tommaso Pecorella 2015-05-05 04:28:03 UTC 
Created attachment 2036 [details]
patch

The discussion is here:
https://groups.google.com/forum/#!topic/ns-3-users/0CAxbtmfRfo

and it's a bug in the example, not related to AODV.
Comment 3 Scott Carpenter 2015-05-05 08:43:08 UTC 
Patch tested locally, and works.  Am suggesting okay to push.
Comment 4 Tom Henderson 2015-05-05 09:19:33 UTC 
I will slip this in today.
Comment 5 Tom Henderson 2015-05-05 18:26:09 UTC 
pushed in changeset 11369:1eb9df0ecfd5