Re: Need help porting ifcfg-ppp0 config to NetworkManager

[David Howells <dhowells redhat com>]

Bjørn Mork <bjorn mork no> wrote:

> > Further, NM doesn't allow me to specify a peer address ("ipv6 ," is the
> > only parameter that it will specify, with both addresses omitted), and I
> > don't know how to automatically retrieve the peer address from within the
> > NM framework.
>
> Note that you don't specify the peer address in your ifcfg file either.
> pppd(8) documents it as
>
>   ipv6 <local_interface_identifier>,<remote_interface_identifier>
>
> and that's what it is.  These are input values for IPV6CP, which doesn't
> negotiate addresses or routing. That's supposed to be configured the
> same way as for any other IPv6 link: Using SLAAC and DHCPv6.  Which
> makes IPv6 over PPP pretty different from IPv4 over PPP, but exactly the
> same as IPv6 over anything else.
>
> The negotiated interface identifiers will be combined with fe80::/64 to
> create link local addresses and with any on-link prefixes advertised in
> RAs.
>
> There is no IPv6 default route option either AFAIK.  But I believe it
> would make sense to offer this as an alternatve in NM for cases where
> the peer doesn't send any RA.  It is a pretty common use case.

Does that mean that I can't do what I need as things stand?

Or do I need to set up DHCPv6?  If that's the case, there's no MAC address to
key the address on.  Is it not possible to manually set a route?

Sorry about this,
David