4 Aug
2015
4 Aug
'15
9:30 a.m.
I'm guessing bug more than anything - there's nowhere in the client or server to define IPv6 addresses in use on the PPP sessions, and while it does honour the 'Add Default Route' tickbox for both v4 and v6, it doesn't honour the default route distance value :\ Although that got me thinking - I can turn off IPv6 for the LTE PPTP session by creating a separate PPP profile for it, and turning off IPv6 in it, which has somewhat solved the problem. Though I still think it's a bug that it doesn't honour the distance value ;) Thanks :) On 4 August 2015 at 09:22, Mike Everest <mike@duxtel.com> wrote: > 'bug' or 'feature'? :-D > > I suppose that if you have IPv6 enabled on the router, it will > automatically > allocate v6 addresses and routes on dialled interfaces in just the same way > that v4 is assigned without you necessarily needing to enable that. > > It makes some kind of sense that when v6 is supported and enabled, it > should > 'just work'. After all, you don't have to manually enable v4 addresses on > pppoe/tp etc either :-} > > I suspect that the answer will lie at the other end - on the server side > you > should be able to define whether v6 is enabled or not because you have to > set all of the client and gateway IP addresses in server (pppoe, pptp, > dhcp, > ...) configs. > > That's my take on it anyhow :) > > Cheers! > > Mike > > > -----Original Message----- > > From: Public [mailto:public-bounces@talk.mikrotik.com.au] On Behalf Of > > Damien Gardner Jnr > > Sent: Tuesday, 4 August 2015 7:25 AM > > To: MikroTik Australia Public List <public@talk.mikrotik.com.au> > > Subject: [MT-AU Public] How to set the pptp client default route distance > for > > IPv6?? > > > > Hi Folks, > > > > Not sure if I've found a bug in the PPTP client in RouterOS, or if I'm > just > > missing something. Our ADSL at home is pretty horrendous, so I run ADSL > + > > LTE, PPTP over the top of both back to SY3, and then OSPF over the those > > (only for connected routes, not default routes - default comes from the > PPTP > > interfaces). > > > > Home nat's out of the the DC, unless the DC is offline, then it falls > back > to > > ADSL, an then to 4G. > > > > We do a lot of traffic on our LTE connection, but I've noticed that > occasionally > > we have long streams of outbound traffic, but it's usually overnight, so > I > > haven't been able to torch it. > > > > Turns out, it's IPv6! I didn't realise I even had IPv6 running over the > PPTP > > tunnels, I figured it was just local to the house only, and going to the > 'net > > over our DSL. > > > > But no, we have V6 on the PPTP tunnels, which was unexpected. > > > > The issue turns out to be, that the default routes being created when the > > PPTP sessions come up, aren't using the 'Default Route Distance' setting > on > > the PPTP interface. > > > > Our V4 default routes look like this: > > [admin@MikroTik] > /ip route print detail where dst-address=0.0.0.0/0 > > Flags: X - disabled, A - active, D - dynamic, C - connect, S - static, r > - > rip, b - > > bgp, o - ospf, m - mme, B - blackhole, U - unreachable, P - prohibit > > 0 A S dst-address=0.0.0.0/0 gateway=203.45.254.1 > > gateway-status=203.45.254.1 reachable via pppoe-tid distance=1 scope=30 > > target-scope=10 > > routing-mark=out-force-tid > > ^ Manual default route for servers in the DMZ > > > > 1 A S dst-address=0.0.0.0/0 gateway=192.168.8.1 > > gateway-status=192.168.8.1 reachable via lte1 distance=50 scope=30 > > target-scope=10 > > routing-mark=out-force-lte > > ^ Manual default route for traffic destined to m.telstra.com > > > > 2 ADS dst-address=0.0.0.0/0 gateway=192.168.13.2 > > gateway-status=192.168.13.2 reachable via pptp-out-syd3-adsl distance=10 > > scope=30 target-scope=10 > > ^ Default route over PPTP-ADSL. Lowest distance, as preferred > > > > 3 DS dst-address=0.0.0.0/0 gateway=192.168.13.3 > > gateway-status=192.168.13.3 reachable via pptp-out-syd3-lte distance=20 > > scope=30 target-scope=10 > > ^ Default route over PPTP-LTE. Second-lowest distance, keeps NAT > sessions > > running, but we firewall off a few things to keep bandwidth down > > > > 4 DS dst-address=0.0.0.0/0 gateway=203.45.254.1 > > gateway-status=203.45.254.1 reachable via pppoe-tid distance=40 scope=30 > > target-scope=10 > > ^ Default route if both PPTP are down - out ADSL > > > > 5 DS dst-address=0.0.0.0/0 gateway=192.168.8.1 > > gateway-status=192.168.8.1 reachable via lte1 distance=50 scope=30 > > target-scope=10 vrf-interface=lte1 > > ^ Deafult route of last resort, natting out behind LTE > > > > > > However our V6 routes look like this: > > [admin@MikroTik] > /ipv6 route print detail where dst-address=::/0 > > Flags: X - disabled, A - active, D - dynamic, C - connect, S - static, r > - > rip, o - > > ospf, b - bgp, U - unreachable > > 0 ADS dst-address=::/0 gateway=pppoe-tid gateway-status=pppoe-tid > > reachable distance=1 scope=30 target-scope=10 > > 1 DS dst-address=::/0 gateway=fe80::2a94:fff:fef1:5900%pppoe-tid > > gateway-status=fe80::2a94:fff:fef1:5900%pppoe-tid reachable distance=1 > > scope=30 > > target-scope=10 > > 2 DS dst-address=::/0 gateway=pptp-out-syd3-adsl gateway-status=pptp- > > out-syd3-adsl reachable distance=1 scope=30 > > target-scope=10 > > 3 DS dst-address=::/0 gateway=pptp-out-syd3-lte gateway-status=pptp- > > out-syd3-lte reachable distance=1 scope=30 > > target-scope=10 > > > > Yep, the distances are ALL 1. So it's ignoring the default distance in > use on > > the PPTP and PPPOE interfaces entirely. > > > > Am I missing something? I guess I could remove the 'Add Default Route' > > tickbox on each session, and manually enter default routes? But surely > the > > Default Route Distance should be applying to V6 as well? > > > > At the worst, can I just turn OFF V6 on the PPTP-LTE session? V6 won't > work > > with ADSL down, since it's using TID-assigned V6 space at the moment. > > > > This is a CRS-109-8G-1S-2HnD on 6.30.2. > > > > Thanks, > > > > Damien > > > > -- > > > > Damien Gardner Jnr > > VK2TDG. Dip EE. GradIEAust > > rendrag@rendrag.net - http://www.rendrag.net/ > > -- > > We rode on the winds of the rising storm, We ran to the sounds of > thunder. > > We danced among the lightning bolts, > > and tore the world asunder > > _______________________________________________ > > Public mailing list > > Public@talk.mikrotik.com.au > > http://talk.mikrotik.com.au/mailman/listinfo/public_talk.mikrotik.com.au > > > _______________________________________________ > Public mailing list > Public@talk.mikrotik.com.au > http://talk.mikrotik.com.au/mailman/listinfo/public_talk.mikrotik.com.au > -- Damien Gardner Jnr VK2TDG. Dip EE. GradIEAust rendrag@rendrag.net - http://www.rendrag.net/ -- We rode on the winds of the rising storm, We ran to the sounds of thunder. We danced among the lightning bolts, and tore the world asunder