[Cerowrt-devel] IPV6 success on 3.10.28-14 with 6to4 tunnel and 6relayd

[Cerowrt-devel] IPV6 success on 3.10.28-14 with 6to4 tunnel and 6relayd

[Vincent Frentzel]

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Hi everyone,

After struggling a while with odhcpd and route propagation I wanted to
report that I got ipv6 working with the following config for 6relayd.

config server se00
        list network    se00
        option rd       server
        option dhcpv6   server
        option management_level 1

config server sw00
        list network    sw00
        option rd       server
        option dhcpv6   server
        option management_level 1

config server sw10
        list network    sw10
        option rd       server
        option dhcpv6   server
        option management_level 1


Hope this can be of use to someone or contribute to the next release :)


BR,

Vincent

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Re: [Cerowrt-devel] IPV6 success on 3.10.28-14 with 6to4 tunnel and 6relayd

[Dave Taht]

On Fri, Feb 21, 2014 at 12:15:13AM +0100, Vincent Frentzel wrote:
> Hi everyone,
> 
> After struggling a while with odhcpd and route propagation I wanted to
> report that I got ipv6 working with the following config for 6relayd.

I am under the impression that 6relayd is now obsolete and that these
are controlled in the /etc/config/dhcp file.

> 
> config server se00
>         list network    se00
>         option rd       server
>         option dhcpv6   server
>         option management_level 1
> 
> config server sw00
>         list network    sw00
>         option rd       server
>         option dhcpv6   server
>         option management_level 1
> 
> config server sw10
>         list network    sw10
>         option rd       server
>         option dhcpv6   server
>         option management_level 1
> 
> 
> Hope this can be of use to someone or contribute to the next release :)
> 
> 
> BR,
> 
> Vincent

> _______________________________________________
> Cerowrt-devel mailing list
> Cerowrt-devel@lists.bufferbloat.net
> https://lists.bufferbloat.net/listinfo/cerowrt-devel

Re: [Cerowrt-devel] IPV6 success on 3.10.28-14 with 6to4 tunnel and 6relayd

[Vincent Frentzel]

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>
> > Hi everyone,
> >
> > After struggling a while with odhcpd and route propagation I wanted to
> > report that I got ipv6 working with the following config for 6relayd.
>
> I am under the impression that 6relayd is now obsolete and that these
> are controlled in the /etc/config/dhcp file.
>

That is correct. However, when using odhcpd I could nt get IPV6 routing
over different segments (ie pings from SW10 to SE00 gave network
unreachable).
In the end 6relayd worked althoug Im not sure why.

Im curious to see if anyone has encountered the same issue.


On Sun, Feb 23, 2014 at 5:07 PM, Dave Taht <dave.taht@bufferbloat.net>wrote:

> On Fri, Feb 21, 2014 at 12:15:13AM +0100, Vincent Frentzel wrote:
> > Hi everyone,
> >
> > After struggling a while with odhcpd and route propagation I wanted to
> > report that I got ipv6 working with the following config for 6relayd.
>
> I am under the impression that 6relayd is now obsolete and that these
> are controlled in the /etc/config/dhcp file.
>
> >
> > config server se00
> >         list network    se00
> >         option rd       server
> >         option dhcpv6   server
> >         option management_level 1
> >
> > config server sw00
> >         list network    sw00
> >         option rd       server
> >         option dhcpv6   server
> >         option management_level 1
> >
> > config server sw10
> >         list network    sw10
> >         option rd       server
> >         option dhcpv6   server
> >         option management_level 1
> >
> >
> > Hope this can be of use to someone or contribute to the next release :)
> >
> >
> > BR,
> >
> > Vincent
>
> > _______________________________________________
> > Cerowrt-devel mailing list
> > Cerowrt-devel@lists.bufferbloat.net
> > https://lists.bufferbloat.net/listinfo/cerowrt-devel
>
> _______________________________________________
> Cerowrt-devel mailing list
> Cerowrt-devel@lists.bufferbloat.net
> https://lists.bufferbloat.net/listinfo/cerowrt-devel
>

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Re: [Cerowrt-devel] IPV6 success on 3.10.28-14 with 6to4 tunnel and 6relayd

[Dave Taht]

until very recently I was using the dnsmasq version of the RA stuff,
(basically uncommenting
everything in /etc/dnsmasq.conf )

I was under the impression that what I'd had switched to worked, but didn't
try this scenario. (it seems to work on the default gw box, but not internally)

I tend to pretty much run babel everywhere, too, which doesn't help...

Anyway, on the interior gateway I have going...

I statically assign something available from my /60 to the se00
interface, and I no longer get a message from
that interface saying this:

Mon Feb 24 03:07:03 2014 daemon.warn odhcpd[1318]: A default route is
present but there is no public prefix on gw00 thus we don't announce a
default route!
Mon Feb 24 03:07:03 2014 daemon.warn odhcpd[1318]: A default route is
present but there is no public prefix on sw00 thus we don't announce a
default route!
Mon Feb 24 03:07:03 2014 daemon.warn odhcpd[1318]: A default route is
present but there is no public prefix on gw10 thus we don't announce a
default route!
Mon Feb 24 03:07:03 2014 daemon.warn odhcpd[1318]: A default route is
present but there is no public prefix on sw10 thus we don't announce a
default route!

(so I assume it's trying to announce a default route to the se00
interface, or at least thinks it is)

I am seeing the /60 inserted into the local default table as well as a
generic route inserted by ras...

default from :: via fe80::8e:f2ff:fefa:a153 dev ge00  proto static  metric 1024
default from 2601:9:6680:530::/60 via fe80::8e:f2ff:fefa:a153 dev ge00
 proto babel  metric 1024

so I:

killall -1 odhcpd # this forces a RA

But in doing that, I am not seeing a default route announced via RA
via radvdump. Sigh.

    prefix 2601:X:Y:535::/64
    {
        AdvValidLifetime 7200;
        AdvPreferredLifetime 1800;
        AdvOnLink on;
        AdvAutonomous on;
        AdvRouterAddr off;
    }; # End of prefix definition


    RDNSS 2601:X:Y:535::1
    {
        AdvRDNSSLifetime 1800;
    }; # End of RDNSS definition


    DNSSL desk.armory.com
    {
        AdvDNSSLLifetime 1200;
    }; # End of DNSSL definition

/etc/config/dhcp has this in it, which sort of matches your 6relayd config

config dhcp 'se00'
        option interface 'se00'
        option start '2'
        option limit '26'
        list dhcp_option '42,0.0.0.0'
        list dhcp_option '44,0.0.0.0'
        list dhcp_option '45,0.0.0.0'
        list dhcp_option '46,8'
        option leasetime '24h'
        option domain 'desk.armory.com'
        option ra 'server'
        option dhcpv6 'server'

On Sun, Feb 23, 2014 at 9:35 PM, Vincent Frentzel <zcecc22@c3r.es> wrote:
>> > Hi everyone,
>> >
>> > After struggling a while with odhcpd and route propagation I wanted to
>> > report that I got ipv6 working with the following config for 6relayd.
>>
>> I am under the impression that 6relayd is now obsolete and that these
>> are controlled in the /etc/config/dhcp file.
>
>
> That is correct. However, when using odhcpd I could nt get IPV6 routing over
> different segments (ie pings from SW10 to SE00 gave network unreachable).
> In the end 6relayd worked althoug Im not sure why.
>
> Im curious to see if anyone has encountered the same issue.
>
>
> On Sun, Feb 23, 2014 at 5:07 PM, Dave Taht <dave.taht@bufferbloat.net>
> wrote:
>>
>> On Fri, Feb 21, 2014 at 12:15:13AM +0100, Vincent Frentzel wrote:
>> > Hi everyone,
>> >
>> > After struggling a while with odhcpd and route propagation I wanted to
>> > report that I got ipv6 working with the following config for 6relayd.
>>
>> I am under the impression that 6relayd is now obsolete and that these
>> are controlled in the /etc/config/dhcp file.
>>
>> >
>> > config server se00
>> >         list network    se00
>> >         option rd       server
>> >         option dhcpv6   server
>> >         option management_level 1
>> >
>> > config server sw00
>> >         list network    sw00
>> >         option rd       server
>> >         option dhcpv6   server
>> >         option management_level 1
>> >
>> > config server sw10
>> >         list network    sw10
>> >         option rd       server
>> >         option dhcpv6   server
>> >         option management_level 1
>> >
>> >
>> > Hope this can be of use to someone or contribute to the next release :)
>> >
>> >
>> > BR,
>> >
>> > Vincent
>>
>> > _______________________________________________
>> > Cerowrt-devel mailing list
>> > Cerowrt-devel@lists.bufferbloat.net
>> > https://lists.bufferbloat.net/listinfo/cerowrt-devel
>>
>> _______________________________________________
>> Cerowrt-devel mailing list
>> Cerowrt-devel@lists.bufferbloat.net
>> https://lists.bufferbloat.net/listinfo/cerowrt-devel
>
>
>
> _______________________________________________
> Cerowrt-devel mailing list
> Cerowrt-devel@lists.bufferbloat.net
> https://lists.bufferbloat.net/listinfo/cerowrt-devel
>



-- 
Dave Täht

Fixing bufferbloat with cerowrt: http://www.teklibre.com/cerowrt/subscribe.html

Re: [Cerowrt-devel] IPV6 success on 3.10.28-14 with 6to4 tunnel and 6relayd

[Dave Taht]

On Mon, Feb 24, 2014 at 12:22 AM, Steven Barth <steven@midlink.org> wrote:
> Normally it should work as soon as the 2 conditions: router has any default
> route and interface has a public prefix are satisfied. Can't see anything
> obviously wrong here. Hmm will have a look later again.

Data point from last night: I get correct RAs (with a default route)
on the sw00 interface. Not on the se00 interface.

There is no difference in configuration between the two interfaces, so
perhaps there's an
off-by-one or similar in odhcp still.


-- 
Dave Täht

Fixing bufferbloat with cerowrt: http://www.teklibre.com/cerowrt/subscribe.html