Re: With mpd5 dynamic interfaces, will rtadvd automatically listen?

From: Lutz Donnerhacke <>
Date: Mon, 07 Mar 2022 20:16:22 UTC
On Mon, Mar 07, 2022 at 11:09:14AM -0800, Neel Chauhan wrote:
> I'm thinking about setting up a dual-stack L2TP server for VPN purposes, 
> and found that mpd5 lacks good dual-stack support outside of IPv6CP, so we 
> have to do a makeshift approach.

We do use mpd5 for years as PPPoE/L2TP termination (LNS). The IPv6CP is
completely sufficient for IPv6 over PPP.

> Will rtadvd automatically listen on the mpd5 ng* interface if the said 
> interface has a public IPv6 address and a user connects (w/ default 
> config)? Or will I need to trigger rtadvd manually?

You can mount a rtavd on the ng* interfaces, but for other routing issues I
already deployed Quagga (long time ago), which is able to provide RA to ng*
interfaces, too.