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OpnSense on Proxmox vs bare metal install? (alien.top)

submitted 9 months ago by [email protected] to c/[email protected]

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I'm going to set out on installing OpnSense for the first time. I see some people put OpnSense on Proxmox and pass through a pcie network card. Besides the power of backing up and restoring, are there other advantages to this?

My planned OpnSense box is an old Dell Optiplex. It has the normal ethernet port on the motherboard as well as a 4-port PCIe network card that I added. So I'd probably use the PCIe network ports for OpenSense, and reserve the onboard ethernet port for troubleshooting if I royally mess up.

I'm still a proxmox newbie, but I think I can manage the PCIe passthrough. I'm just not sure what other complications that will introduce to my OpnSense and networking learning curve. So I thought I'd ask first and see if some of the disadvantages or advantages would push me one way or the other. I'm afraid of locking myself out of OpnSense because of incorrectly configured networking as I'm learning.

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[–] [email protected] 1 points 9 months ago (6 children)

I run pfSense on a 2 node Proxmox "cluster" (cluster in quotes because I don't have quorum for automatic failover). Each host has a dedicated NIC for the firewall's WAN port attached to my modem which is in bridge mode. When I need to do maintenance on the node hosting the FW I do a live migration to the other node. I drop one ping during the migration.

Honestly, when I was designing it I didn't think it would work......but here we are....lol.

[–] [email protected] 1 points 9 months ago

Do you have to swap network cables when failing over from one host to another?

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