[olug] USB ethernet interface names too long test

[Jon Larsen]

Rob,

Maybe you can notify Bernie Thompson at Plugable via Amazon marketplace and
they can adjust their documentation/support page.

He previously provided two docking stations as prize drawings to a couple
OLUG members back in 2012.

Jon L.

On Tue, May 25, 2021 at 9:05 AM Matthew G. Marsh <olug4mgm at paktronix.com>
wrote:

>
> Huh - nice. That just explained why one of my scripts a few years ago kept
> blowing up. I was using a similar long manual naming scheme for tuntap
> devices. Never did dig in to figure out what was wong - just changed the
> naming scheme to 8 char (which I default to if I suspect a length issue -
> ah good ol' DOS names).
>
> Thanks for the pointer!
>
> mgm
>
> On Mon, 24 May 2021, Rob Townley wrote:
>
> > On Mon, May 24, 2021 at 3:21 PM Rob Townley <rob.townley at gmail.com>
> wrote:
> >
> >> root# ip link add dev 1234567890123456 type dummy
> >> Error: argument "1234567890123456" is wrong: "name" too long
> >>
> >> root# ip link add dev 123456789012345 type dummy
> >>
> >> Our Plugable.com usb3me-hub3me usb-to-ethernet  network adapters are
> named  by default as enx${MacAddress}  which  with the NULL ?\0?  at the
> end pushes  it to 16 characters.
> >>
> >>   enx${MacAddress}.3 does not work to get to vLan 3 because of the name
> is too long.
> >>
> >> So will have to use udev rules to rename these devices so that i can
> get them on the switch management vLan i  locked myself out  of ?. yet
> again.
> >>
> >>
> >
> > i meant to add that i did not come up with that tidbit, it came from
> > stackoverflow.
> >
> https://stackoverflow.com/questions/24932172/what-length-can-a-network-interface-name-have
>
> --------------------------------------------------
> Matthew G. Marsh
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