On Wed, Jun 16, 2021 at 12:21:22PM +0100, Steve Hill wrote: > On 16/06/2021 11:44, Bjørn Mork wrote: > > > Not at all. Assigning a global address to lo (loopback) is perfectly > > fine. > > Can an address from PD be automatically assigned to lo by NetworkManager?
Currently, no. I think assigning the PD to the loopback interface is
not different from assigning it to a dummy interface, e.g.:
nmcli connection add type dummy ifname dummy1 \
ipv4.method disabled ipv6.method shared
The only problem is that now you have 2 connections. If they activate
automatically at boot, no problem. Otherwise you need to remember to
activate the dummy when you bring up the pppoe; probably you can
achieve that using dispatcher scripts.
Beniamino
> > No need to assign an address to a link unless you want to assign
> > a prefix to it.
>
> Having the address on the "correct" NIC makes address selection work
> properly where you have multiple connections.
>
> > And you obviously don't want to do that for the link
> > you received the IA_PD from, which is why it isn't allowed
> You don't want to send router advertisements for the prefix on that link,
> but assigning a /128 address, which would be automatically used for outgoing
> connections being made through that NIC, should be fine.
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