Re: fibre problem with Intel 82571EB

[Frank Weißer <linux@weisser-ol.de>]

Moinmoin Wolfgang,

thank you, that did the trick!

readU
Frank

Wolfgang Schweer:
> Moin Frank,
>
> [ Frank Weißer, 2020-11-20 ]
> > eth0 NC(=unused)
> > 00:19.0 Ethernet controller: Intel Corporation 82566DM-2 Gigabit Network
> > Connection (rev 02)
> >          Subsystem: Fujitsu Technology Solutions 82566DM-2 Gigabit Network
> > Connection
> >          Kernel driver in use: e1000e
> >
> > eth1-4
> > eth1 NC
> > eth2 NC
> > eth3 flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
> >          inet 192.168.0.254  netmask 255.255.255.0
> > eth4 flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
> >          inet 10.0.2.2  netmask 255.0.0.0
> > 04:00.1 Ethernet controller: Intel Corporation 82571EB Gigabit Ethernet
> > Controller (Fiber) (rev 06)
> >          Subsystem: Intel Corporation PRO/1000 PF Quad Port Server Adapter
> >          Kernel driver in use: e1000e
> >
> > I can reach tjener via fibre cable and switch and use it with scp, smb and
> > so on.
> > But dhcp, bxe-boot and ltsp-clients don't work.
> >
> > How can I tell 82571EB to do its work?
>
> IMO this is not a network card issue.
> I guess renaming the interface names would help.
>
> Only do the following if the system isn't used by anyone else...
>
> (0) Put down the MAC addresses of eth3 and eth4 (eth4 should be eth0 and
>       eth3 should be eth1 later)
> (1) Remove 'net.ifnames=0' from the kernel command line in /etc/default/grub
> (2) Run 'update-grub'
> (3) Reboot. 'ip a' will show you the persistent network interface names
>      (probably something like enpXsY, where Y is the slot name) and MACs
> (4) Add MAC matching lines at the begin of /etc/network/interfaces, e.g.:
>      rename enp0s3=eth0
>      rename enp0s8=eth1
> (5) Reboot and check if everything works, otherwise fix the renaming lines
>
> Hope it helps,
> Wolfgang