ifconfig: BRDGADD lo1: invalid argument

[Marie Helene Kvello-Aune]

Check that lo1 has same MTU as bridge0.

Regards,
Marie Helene

On Sat, Jun 25, 2016 at 8:38 PM <org.freebsd.security at io7m.com> wrote:

> Hello.
>
> I'm trying to create a bridge interface to isolate some jails on
> private addresses. I'm on a near-pristine install of 10.3, updated to
> 10.3-p5 via freebsd-update.
>
> The virtual interface to which the jails will be bound:
>
> # ifconfig lo1 create
>
> The bridge:
>
> # ifconfig bridge create
> bridge0
> # ifconfig bridge0 addm em0
> # ifconfig bridge0 addm lo1
> ifconfig: BRDGADD lo1: Invalid argument
>
> I can find one reference to this error message online from 2007:
>
>
> https://lists.freebsd.org/pipermail/freebsd-net/2007-December/016102.html
>
> ... but this doesn't appear to be the problem I'm having (it seems as
> though it was caused by an out-of-sync kernel and world, which I
> obviously don't have).
>
> Any ideas how to get this working?
>
> M
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