VyOS is just software. So nothing to purchase there. It's what I use when I need either a virtual router, or want to use commodity hardware to act as a router. It's great to throw in ESXi or another hypervisor, or even EC2. It comes with all features you might need (probably), and because it's fairly standard Linux (Debian based), making it do extra things isn't very hard.
The ERL is $100, and comes with Ubiquiti's EdgeOS, which is largely based on VyOS (or something like that), and simply adds a (decent) web UI, and hardware offloading. This means that the ERL which runs on a dual core 700Mhz MIPS CPU can route 1Gbit/s, and not even break 30% CPU utilisation.
Where VyOS shines is when you need to cobble together a bunch of things. If you just need a pure firewall, I would probably stick with pfsense, as that is, after all, what it is good at. VyOS only offers iptables with some lipstick (which is well enough for a Swiss-army knife setting)
I guess VyOS would run on that box. I can't see specs, nor know what network chipset it is rocking, but I don't see why not.
The ERL is $100, and comes with Ubiquiti's EdgeOS, which is largely based on VyOS (or something like that), and simply adds a (decent) web UI, and hardware offloading. This means that the ERL which runs on a dual core 700Mhz MIPS CPU can route 1Gbit/s, and not even break 30% CPU utilisation.
Where VyOS shines is when you need to cobble together a bunch of things. If you just need a pure firewall, I would probably stick with pfsense, as that is, after all, what it is good at. VyOS only offers iptables with some lipstick (which is well enough for a Swiss-army knife setting)
I guess VyOS would run on that box. I can't see specs, nor know what network chipset it is rocking, but I don't see why not.