Cluster I/O Protocols (CIP) Configuration and Management Manual (H06.16+, J06.05+)

Figure 18: Bound Socket Problem Configuration Without Policy Based Routing shows a bound
socket configuration with these characteristics:
• There are two interfaces on the same IP subnet (A.0).
• A.0/24 is the subnet route added automatically when the IP address A.11 was configured
on the CLIM.
• eth3 is activated first (non-deterministic).
• The subnet route on eth3 is used for all outgoing connections to the network.
• The socket is bound to the A.11, IP address on eth1.
• The source address used in the packet is the one that is bound by the socket.
Problem: A packet is sent out on the eth3 interface with a source address from the eth1 interface.
Figure 18 Bound Socket Problem Configuration Without Policy Based Routing
With policy based routing enabled and no configuration change, the packet is sent out on the
eth1 interface with a source address from the correct interface, eth1, as shown in Figure 19: Bound
Socket Problem Configuration With Policy Based Routing:
82 CIP Configuration and Management