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Hi everyone,

I'm currently running OPNsense on a system with an Intel Core Duo processor, and I'm experiencing performance issues. The setup includes basic firewall and routing functions, but the system struggles under heavy traffic and load.

Has anyone else run OPNsense on a Core Duo processor? I'm looking for advice on optimizing performance or determining if an upgrade is necessary. Specifically, I'd like to know:

Recommended settings and configurations for better performance

Any known limitations with Core Duo processors

Suggestions for potential hardware upgrades

Thanks in advance for your help!

you've already done a lot of performance tuning! Given your setup, here are a few additional suggestions:

Check for Software Updates: Ensure that all your software, including the OS and OpnSense, are up to date. Sometimes performance improvements are included in updates.

Optimize DNS and NTP Settings: Fine-tune your DNS and NTP configurations to ensure they're not causing unnecessary load.

Monitor CPU and Memory Usage: Use tools like htop or top to monitor real-time CPU and memory usage. This can help identify any processes that are consuming more resources than expected.

Consider Load Balancing: If possible, distribute the load across multiple servers to prevent any single server from becoming a bottleneck.

Evaluate Network Configuration: Double-check your network settings to ensure there are no misconfigurations causing unnecessary traffic or delays.

If these steps don't help, it might be worth considering hardware upgrades or consulting with a performance specialist to identify any underlying issues.

Good luck, and I hope this helps!

there might be an issue with the network settings or firewall rules on your new OPNsense box. Here are a few steps to troubleshoot:

Check Network Configuration: Ensure that the LAN interface on OPNsense is configured correctly and has an IP address in the same subnet as your computers.

Firewall Rules: Verify that there are no firewall rules blocking ICMP (ping) and SMB (file sharing) traffic between your computers and the OPNsense box.

NAT and Routing: Make sure that NAT and routing are properly configured to allow traffic between your LAN and the OPNsense box.

If these steps don't resolve the issue, you might want to check the logs on OPNsense for any errors or clues about what's going wrong.

Since the SSH response isn't getting through, even after adding normalization rules, it might be worth double-checking your LAN inbound rules. Ensure there's a rule explicitly allowing SSH traffic from your home network's source IP to your laptop's target IP through the WireGuard interface. Sometimes, it helps to place this rule higher in the priority list to ensure it takes effect before other rules. Keep an eye on the logs for any clues about what's blocking the connection. Good luck!

it seems like there might be an issue with how the VLAN interfaces are configured on OpnSense. Here are a few steps you can try:

Verify VLAN Configuration on OpnSense: Ensure that the VLAN interface on OpnSense is correctly configured. Double-check the settings. Make sure the VLAN tag matches the one assigned to the port group.

Check NIC Settings: Ensure that the NIC on OpnSense is set to accept tagged VLAN traffic. You might need to enable VLAN trunking on the NIC if it's not already enabled.

Review Firewall Rules: Check the firewall rules on OpnSense to ensure that traffic between the VLANs and the OpnSense LAN interface is allowed.

Logs and Diagnostics: Enable logging on OpnSense to capture any traffic that might be hitting the interface. This can help identify if packets are reaching the interface but are being dropped or filtered.

Test with a Simple Setup: Try setting up a simple test environment with one VM and OpnSense to see if the VLAN configuration works in a controlled setting. This can help isolate the issue.

Good luck, and I hope this helps!