NFD

Topology: A,B,C connected on the same Ethernet switch

Steps to reproduce:

1. run Wireshark or tcpdump to observe traffic
2. start NFD on A,B,C with UDP multicast enabled
3. on host B, run ndn-traffic-server to server ndn:/test-mcast
4. on host A, add FIB entry ndn:/test-mcast toward UDP multicast face
5. on host A, run ndn-tlv-peek to request ndn:/test-mcast/B/1

Actual: after B sends a Data packet to the multicast group, C repeats the Data packet to the multicast group

Expected: C does not repeat the Data packet

Relevant log lines from C:

1398806704.842483 DEBUG: [Forwarder] onIncomingInterest face=3 interest=/test-mcast/B/1
1398806704.842640 DEBUG: [Forwarder] onInterestReject interest=/test-mcast/B/1
1398806704.852856 DEBUG: [Forwarder] onIncomingData face=3 data=/test-mcast/B/1
1398806704.853038 DEBUG: [Forwarder] onIncomingData matching=/test-mcast/B/1
1398806704.853153 DEBUG: [Strategy] beforeSatisfyPendingInterest pitEntry=/test-mcast/B/1 inFace=3 data=/test-mcast/B/1
1398806704.853318 DEBUG: [Forwarder] onOutgoingData face=3 data=/test-mcast/B/1