In the topology diagram shown in Figure 1, there is a local network attached to each physical port. This allows bidirectional communication with local clients and an OSA-ICC physical port connection. Remote clients can also communicate with OSA-ICC because there is an established path with the router. Although this path exists and allows inbound traffic, all outbound traffic is routed through Physical Port 0 because the default gateway resides on this subnet.

Figure 1. Network topology Diagram 2