I’m thinking about moving my router to be a VM on a server in my homelab. Anyone have any experience to share about this? Any downsides I haven’t thought of?
Backstory: My current pfSense router box can’t keep up with my new fibre speeds because PPPOE is single threaded on FreeBSD, so as a test, I installed OpenWRT in a VM on a server I have and using VLANs, got it to act as a router for my network. I was able to validate it can keep up with the fibre speeds, so all good there. While shopping for a new routerboard, I was thinking about minimizing power and heat, and it made me realize that maybe I should just keep the router virtualized permanently. The physical server is already on a big UPS, so I could keep it running in a power outage.
I only have 1 gbps fibre and a single GbE port on the server, but I could buff the LAN ports if needed.
Any downsides to keeping your router as a VM over having dedicated hardware for it?
my isp also does pppoe, i have a virtual pfsense, 1gbps up/down, it’s never been an issue for me. ive had this setup for maybe three years.
Do a speed test and run htop… you’ll see CPU usage only on one core spiking. Not a big deal if your CPU can handle it, but the AMD GX-412TC in the APU2 I was using is too slow.
I have 2 vcpu (host) for the pfsense vm, xeon e5-2667 3.2ghz, i see both cpu hit about 80% max during speed tests.
pfsense ce 2.7.2-RELEASE