Re: [Openvpn-devel] push route-ipv6 and metric

[Athanasios Douitsis]

19 Ιουν 2013, 11:04 μ.μ., ο/η Gert Doering  έγραψε:

> Hi,
> 
> On Wed, Jun 19, 2013 at 06:00:27PM +0300, Athanasios Douitsis wrote:
>> I noticed that issuing the following command in the server config:
>> 
>> push "route-ipv6 ::/0 2001:648:2000:ffae::1 15"
>> 
>> does indeed make a windows client install that route, but it ignores the
>> metric:
> 
> True.  There is no metric support for IPv6 routes today - half of it is
> "because most operating systems don't actually support route metrics"
> and the other half is "because I'm lazy and haven't found a problem
> that needed metrics, and couldn't be tackled in a more robust way".
> 
>> Fwiw, I was able to workaround this problem by pushing two /1 routes,
>> exactly like def1 does for IPv4. Like this:
>> 
>> push "route-ipv6 ::/1 2001:648:2000:ffae::1"
>> push "route-ipv6 8000::/1 2001:648:2000:ffae::1"
> 
> routing 2000::/3 is usually sufficient, as all globally routable IPv6
> space is in there.
> 
> gert
> -- 
> USENET is *not* the non-clickable part of WWW!
>   //www.muc.de/~gert/
> Gert Doering - Munich, Germany g...@greenie.muc.de
> fax: +49-89-35655025g...@net.informatik.tu-muenchen.de


Hello Gert,

Heh, you're right :) Anyway, maybe the man page shouldn't mention the metric in 
the first place then. 

Thanks!,
Athanasios 

Re: [Openvpn-devel] push route-ipv6 and metric

[Gert Doering]

Hi,

On Wed, Jun 19, 2013 at 06:00:27PM +0300, Athanasios Douitsis wrote:
> I noticed that issuing the following command in the server config:
> 
> push "route-ipv6 ::/0 2001:648:2000:ffae::1 15"
> 
> does indeed make a windows client install that route, but it ignores the
> metric:

True.  There is no metric support for IPv6 routes today - half of it is
"because most operating systems don't actually support route metrics"
and the other half is "because I'm lazy and haven't found a problem
that needed metrics, and couldn't be tackled in a more robust way".

> Fwiw, I was able to workaround this problem by pushing two /1 routes,
> exactly like def1 does for IPv4. Like this:
> 
> push "route-ipv6 ::/1 2001:648:2000:ffae::1"
> push "route-ipv6 8000::/1 2001:648:2000:ffae::1"

routing 2000::/3 is usually sufficient, as all globally routable IPv6
space is in there.

gert
-- 
USENET is *not* the non-clickable part of WWW!
   //www.muc.de/~gert/
Gert Doering - Munich, Germany g...@greenie.muc.de
fax: +49-89-35655025g...@net.informatik.tu-muenchen.de


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