I am using the attached topology to create the SCTP network in GNS3. I am using two ubuntu Operating Systems with two network cards each as shown in figure. My first question is, is it the right way to test the SCTP with such topology. Secondly I am unable to ping one NIC on both sides i.e 192.168.2.2 ubuntu NIC on left hand side and 192.168.4.2 ubuntu NIC on RHS. how could I resolve the issue?