On 5/26/19 10:59 PM, Jack Craig wrote:
On Sun, May 26, 2019 at 10:52 PM Ed Greshko <ed.greshko(a)greshko.com
<mailto:ed.greshko@greshko.com>> wrote:
On 5/27/19 1:38 PM, Jack Craig wrote:
>
>
> On Sun, May 26, 2019 at 10:17 PM Ed Greshko
<ed.greshko(a)greshko.com <mailto:ed.greshko@greshko.com>
> <mailto:ed.greshko@greshko.com
<mailto:ed.greshko@greshko.com>>>
wrote:
>
> On 5/27/19 12:17 PM, Jack Craig wrote:
> > i thought what i read was after nm brings up the vpn, only
then is the default
> route to
> > vpn created. more, its torn down first on shutdown.
> >
> > i'm thinking along this line, ...
> >
> > https:
<
https://www.debuntu.org/how-to-network-manager-openvpn-overwrites-default...
what should happen is that after each interface comes up via NM a
default route
> is set to it
> so eth0 up, default route to , say, 10.0.0./24
<
http://10.0.0./24> <
http://10.0.0./24>, then vpn comes and
> default route is now pointed at the vpn.
>
> and this process in reverse on shutdown...
What I've seen is two additional, more specific, default routes added:
0.0.0.0/1 and 128.0.0.0/1, which cover the entire ipv4 address space. By
doing it this way the new routes can be deleted and the original default
route remains. This works because a more specific route trumps the less
specific route (0.0.0.0).
Unfortunately, I can't remember who adds/removes those routes but I
suspect it is NM.
Good travels on your adventure,
:m