Re: Bridged ethernet with ipnat redirect to local port - getting ICMP redirects instead

[Thomas Bieg <tomsbsd%googlemail.com@localhost>]

David Young wrote:
> On Sun, Jul 06, 2014 at 09:01:38PM +1000, Darren Reed wrote:
> > With respect to the ICMP redirect issue, I suspect that this is down
> > to poor feature interaction in NetBSD and bridging. Somewhere the code
> > is treating re0 and re1 as separate interfaces (and thus sending an
> > ICMP redirect) when in fact they should be treated as one.
>
> I agree that IP should treat the two ethernets as one interface: re0 and
> re1 ought to belong to the same ethernet forwarding domain, and that
> forwarding domain should have an IPv4 interface stacked on it.

I'm a bit out of my depth here, but isn't that how FreeBSD handles this?
From what I gathered, one would assign the IP address to the bridge
interface there (e.g. bridge0) and not one of the member interfaces.

(Which OTOH seems to be problematic if I need to add a bridge to a running
system.)


Best regards,
Tom