%pci -v 1.0.0: net 02.00.00 8086/10fb 255 0:4f880004 524288 2:00004001 32 4:4f900004 16384 Intel Corporation 82599ES 10-Gigabit SFI/SFP+ Network Connection In my SFP port is an SFP to RJ45 copper module, it is a unbranded generic 10/100/1000Base-T, confirmed to work on Ubuntu.  4 Apr 2024, 22:05 by ori@eigenstate.org: > % pci -v > > 1.0.0: net 02.00.00 8086/1557 11 0:e030000c 524288 2:0000f001 32 4:e038000c 16384 > Intel Corporation 82599 10 Gigabit Network Connection > > This card works for me out of the box, with a 10g sfp. > What specific PCI id do you have? what SFP? > > This is going to take some debugging. > > Quoth Mr Neuralwright : > >> Hi All, >> I have recently acquired a 10Gbit PCIE Intel 85299-1SFP network card since this chipset is supported in 9front, although now I suspect the driver may have only RJ45 port variants of 85299 supported, and not SFP - hopefully I'm wrong and I'm just missing something. >> >> #ip/ipconfig >> "no success with DHCP* >> >> #ip/ipconfig -g 192.168.1.1 ether /net/ether0 192.168.1.200 255.255.255.0 >> #ip/ping 192.168.1.1 >> Pings fail >> #cat /net/ether0/adder >> successfully returns a MAC address >> >> (Yes, ether0 is the PCIE card and not the integrated NIC) >> Notably the Rx/Tx lights on the SFP port do not light up at all. Networking and the activity lights work perfectly fine on Ubuntu out-the-box, so the hardware is fine. >> >> 9front does at least recognise the device exists, which is a start. Any suggestions on how to resolve this? >>