Hey David thanks for  reply makes more sens to me now ...  Thanks again...
Tom Smyth

On Sat, 2 Apr 2022 at 04:11, David Gwynne <da...@gwynne.id.au> wrote:
>
> loopback interfaces are special and kind of end up representing an rdomain 
> inside the kernel, which is where this restriction comes from.
>
> dlg
>
> > On 2 Apr 2022, at 09:36, Tom Smyth <tom.sm...@wirelessconnect.eu> wrote:
> >
> > Hello,
> >          I came across an issue that once a rdomain is set on a
> > loopback interface
> > you cant change it without destroying and re-creating the interace,
> > while it appears you can change a virtio  network interface, is this a
> > bug or a feature
> >
> > tobsd# ifconfig lo3 create
> > tobsd# ifconfig lo3 rdomain 3
> > tobsd# ifconfig lo3 inet 127.0.0.1/8
> > tobsd# ifconfig lo3
> > lo3: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> rdomain 3 mtu 32768
> > index 5 priority 0 llprio 3
> > groups: lo
> > inet6 ::1 prefixlen 128
> > inet6 fe80::1%lo3 prefixlen 64 scopeid 0x5
> > inet 127.0.0.1 netmask 0xff000000
> > tobsd# ifconfig lo3 rdomain 0
> > ifconfig: SIOCSIFRDOMAIN: Operation not permitted
> > tobsd# ifconfig
> >
> >
> > --
> > Kindest regards,
> > Tom Smyth.
> >
>


-- 
Kindest regards,
Tom Smyth.

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