Choose the appropriate port forward based on your network needs.
Choose the appropriate port forward based on your network needs.
You're using two LAN ports on your motherboard and connecting them to your router since the router doesn't support gigabit speeds. For IPv4, you'll need to forward the appropriate ports to access your devices. Check your router's documentation for the correct IP addresses associated with each port.
To tackle your query, consider using either IP address on the specified port. Both will function properly for forwarded traffic. If no load balancing is set up, connecting both LAN ports won’t yield results. Disconnecting one port would be a better approach.
I don't believe running two cables is reaching your goal. To get faster speeds you'd need portchannel, bundled or teaming. Unless you're using outdated equipment, your router likely won't support that. If it doesn't handle Gigabit, combining two 100Mbps ports won't give you a true Gigabit link. Also, if you're sending traffic over both interfaces, Windows will favor one and ignore the other, just like with Wi-Fi—no load balancing happens. Simply disconnect one and forward the traffic through the other.