Hardware for 25Gbit WAN

I’m planning on upgrading my home internet connection to either 10Gbit or 25Gbit.
I would like to make a custom built router/firewall.

Does anyone have a running setup/hardware list that can provide a stable throughput of ~25Gbit between red and green.

Hello Flo,

we have our own line of appliances which are great for an Enterprise use case and can go up to 100 GBit/s of throughput:

There is of course the IPFire Enterprise Appliance which has two 10 GBit/s Ethernet Adapters built in:

And we have an even beefier model which we don’t have in the shop which comes with four 25 GBit/s Ethernet Controllers.

Product-Data-Sheet-IPFIRE-ULTIMATE-EU-R1.pdf (129.7 KB)

However, since these are enterprise-grade appliances, they might be slightly over your budget for a home internet connection.

At that rate, and if you want to be able to filter all that traffic properly, you will be looking at something with a large Intel Xeon processor with a lot of cores so that they can balance the load and some NICs that are able to feed all that data into the CPUs.

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Thank you for your input. You guessed absolutely right that those appliances are a bit over the budget for my home setup.

The router/firewall I want to build will be often just idling at low throughput but should be able to handle the peak of 25Gbit (mainly large downloads/uploads, not many different connections).

Do you have more insight which hardware is to be preferred for such a setup?
It’s obvious for me that I have to pick a mainboard/chipset and cpu that provide enough CPU PCIE lanes for the NIC.
But do we have more experience in this comunity which hardware works best?

E.g.

Which mainboard/cpu combinations work best together or how many cpu cores for such a high throughput.
How important is single core performance vs number of cores?
Is there a reason to go specifically for Intel Xeon CPUs or Intel Core CPUs or AMD?