[Dnsmasq-discuss] Reverse of option 121

Geert Stappers stappers at hendrikx-itc.nl
Thu Jan 31 16:51:02 GMT 2019


On Tue, Jan 29, 2019 at 01:51:39PM +0100, Daniel Huhardeaux wrote:
> Le 28/01/2019 à 20:11, Geert Stappers a écrit :
> > On Mon, Jan 28, 2019 at 06:44:22PM +0100, Daniel Huhardeaux wrote:
> > > Hi,
> > >
> > > I have a setup where 3 VLANs are involved and stateless-static-route
> > > are sended for one of them. Some devices can be part of one or
> > > another of this VLANs.
> > >
> > > Problem is that if a device was connected to the VLAN who sended
> > > the static-routes, when switching to one of the other VLAN the
> > > static-routes are still there.
> > >
> > > Is there a way to remove static routes via a dhcp option ? Opposite
> > > of option 121 ?
> > >
> > > Thanks for any hint
> > >
> >
> > On Linux with NetworkManager are all routes over a device deleted
> > whenever the device is disconnected.
> >
> > So when you have a disconnect upon VLAN hop-over you are fine.
> >
> > Upon connect happens another DHCP including  option 121 static routes.
> 
> I face this problem with Windows client (8.1)
> 

But a disconnect is seen by that client while switching VLAN?



Cheers
Geert Stappers
DevOps Engineer at Hendrikx ITC




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