Examine the exhibit, which contains a virtual IP and a firewall policy configuration. The WAN(port1) interface has the IP address 10.200.1.1/24. The LAN(port2) interface has the IP address 10.0.1.254/

While 'outgoing interface address' usually means using the primary IP of the egress interface (10.200.1.1), a more specific 1:1 NAT rule for a particular source IP would take precedence if configured.

10.0.1.254 is the LAN interface IP, which is an internal IP address and would not be used as a source NAT IP for Internet traffic.

An IP pool might use any available IP, but for a specific source IP (10.0.1.10) to map to a specific public IP (10.200.1.10), a 1:1 NAT or an explicit IP pool entry is required, not just "any available IP".

For the internal IP 10.0.1.10 to be source NATted to 10.200.1.10, a specific 1:1 NAT configuration, typically an IP pool or central NAT rule, must be in place. This configuration maps the workstation's internal address to a specific public IP on the WAN interface, overriding the general 'outgoing interface address' for that particular source if configured for 1:1.