<div dir="ltr"><div>Ken,</div><div><br></div><div>Thanks. I'd prefer to work with hardware I already own, which is a lot. I have many spare USB gigabit NICs, and several 2.5g USB NICs. <br></div><div>I also have several spare Aquantia 2.5/5/10g PCI-E NICs also, but those require x4 slots, and I would need two PCIe slots. Drivers are open-source. Not sure if anyone has tried those on ARM systems before.<br></div><div><br></div><div>Anyway, for now, I just tried IPFire without any additional networking hardware besides the USB cable to the KVM, and HDMI display, and it won't even boot on my Pi4B. Looks like a lot of users are running into the same MMC SD card error. <a href="https://community.ipfire.org/t/ipfire-on-raspberry-rpi4-b/6118/19">https://community.ipfire.org/t/ipfire-on-raspberry-rpi4-b/6118/19</a></div><div>It appears that I need a different router distribution.</div><div><br></div><div>OpenWRT comes up in Google searches. I don't want/need the wireless part. Not sure if it can handle just multiple wired NICs and leave the wireless part off. Time to download, flash it and find out.<br></div><div><br></div><div>Julien<br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Apr 6, 2022 at 5:29 PM Kenneth Porter <<a href="mailto:shiva@sewingwitch.com">shiva@sewingwitch.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">--On Wednesday, April 06, 2022 6:10 PM -0700 Julien Pierre <br>
<<a href="mailto:goldberg.variations@gmail.com" target="_blank">goldberg.variations@gmail.com</a>> wrote:<br>
<br>
> I don't know if the Raspberry Pi 4B will be fast enough - I<br>
> would like it to handle at least gigabit download speed. I have a pair of<br>
> Realtek USB 2.5Gbase-T NICs, but my experience with them hasn't been good<br>
> - they can't do full-duplex 2.5 Gbps in iperf even on a full-fledged<br>
> powerful PC because they are limited by USB 3.0.<br>
<br>
The CM4 might be better, since you get raw PCIe instead of USB3.<br>
<br>
<<a href="https://forums.raspberrypi.com/viewtopic.php?t=314969" rel="noreferrer" target="_blank">https://forums.raspberrypi.com/viewtopic.php?t=314969</a>><br>
<br>
<<a href="https://www.seeedstudio.com/blog/2020/11/03/what-can-you-do-with-the-pcie-x-1-on-raspberry-pi-cm4-io-board-m/" rel="noreferrer" target="_blank">https://www.seeedstudio.com/blog/2020/11/03/what-can-you-do-with-the-pcie-x-1-on-raspberry-pi-cm4-io-board-m/</a>><br>
<br>
I hadn't realized there's an I/O HAT with a PCIe connector, listed at $35. <br>
So you could mount a standard single-lane PCIe PC card (like a dual Gigabit <br>
Ethernet card) to a CM4.<br>
<br>
<<a href="https://www.seeedstudio.com/Raspberry-Pi-CM4IO-Board-p-4716.html" rel="noreferrer" target="_blank">https://www.seeedstudio.com/Raspberry-Pi-CM4IO-Board-p-4716.html</a>><br>
<br>
<br>
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</blockquote></div>