* Stuart Henderson <stu.li...@spacehopper.org> [2021-10-26 11:35:06]: > On 2021-10-26, Matt Dainty <m...@bodgit-n-scarper.com> wrote: > > I'm currently using OpenBSD with an Andrews & Arnold vDSL connection so I > > have > > a pppoe(4) interface, etc. and this works for IPv4 & IPv6. > > > > The problem is because of the rubbish rural Openreach infrastructure here in > > the UK I only get a stable 3.5 Mb/s, however another ISP (Voneus) has been > > installing fibre in the area and can offer a 100+ Mb/s connection, but it > > looks > > like their network is all sorts of CGNAT and they don't seem to offer IPv6 > > addresses. > > > > So I figured I'll just use the A&A L2TP relay service and use this new fast > > connection to tunnel all of my traffic between the two ISPs and maintain the > > IPv4 & IPv6 addesses that A&A have assigned to me on my vDSL connection. > > > > Has anyone done this with OpenBSD? I understand xl2tpd is in ports but does > > This (aaisp l2tp) is exactly why I wrote the port for xl2tpd, though in > my case it was only for emergency use while a line was down. > > > everything work through the tunnel, including IPv6? I saw mention about 8-9 > > years ago that the pppd(8) that xl2tpd uses doesn't do IPv6. Is that still > > the > > case? > > Yes that's still the case about pppd(8) and IPv6. Unfortunately pppd(8) > upstream removed most OS support somewhere after the version we > currently have so updating it is decidedly non-trivial (I think there > might have been a few versions between ours, last real update in '98, > and the last one with BSD support, but it's quite far from what > upstream has now).
NetBSD looks like it has an IPv6-aware ppp(4) and pppd(8) but I haven't peeked at the source at all, that's just from the man pages, I was still at the stage of figuring out if this was even viable. > AFAIK the only ppp code in OpenBSD that supports IPv6 inside PPP is pppoe(4). I taught pppoe(4) about RFC 4638 which I've relied on since, but that was 9+ years ago so I've lost my familiarity with that code. I'll have a look at the sources and do some research. Cheers Matt
