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How to crossflash intel X710 OEM cards

Disclaimer

ONLY do this if you understand what this script does and when you are sure that this method is applicable to your card!!!

I'm not responsible for your doings! You are flashing the firmware of your ethernet card, in the worst case you endup with a soft- or even hardbricked card! Also this might void your warrenty.

Having said this, if you are uncertain if this will work for your card be sure to dump the ROM with a RPI, RPI Pico or 3.3v moded SPI-Flash Programmer:

nitred

About

• I faced bandwidth issues between a WG Peer and a WG server. Download bandwidth when downloading from WG Server to WG peer was reduced significantly and upload bandwidth was practically non existent.
• I found a few reddit posts that said that we need to choose the right MTU. So I wrote a script to find an optimal MTU.
• Ideally I would have liked to have run all possible MTU configurations for both WG Server and WG Peer but for simplicity I choose to fix the WG Server to the original 1420 MTU and tried all MTUs from 1280 to 1500 for the WG Peer.

Testing

• On WG server, I started an iperf3 server
• On WG peer, I wrote a script that does the following:
  • wg-quick down wg0
• Edit MTU in the /etc/wireguard/wg0.conf file