Please remove me from this email chain. On Thu, Jun 20, 2019 at 2:33 PM Pascal Hambourg <pas...@plouf.fr.eu.org> wrote:
> Le 18/06/2019 à 18:19, Reco a écrit : > > On Tue, Jun 18, 2019 at 04:45:59PM +0200, Pascal Hambourg wrote: > >> Le 18/06/2019 à 16:11, Reco a écrit : > >>> > >>> The problem can be 'solved' by announcing specific IP routes to each > and > >>> every host on both sites. Yes, it's gross. > >> > >> Not all hosts accept route announcements (using which protocol ?). > > > > DHCP seems to be the most straightforward way of doing this. > > DHCP provides two options to advertise static routes. > > The old "static-routes" option assumes classfull routing and does not > advertise a netmask or prefix length. It is derived by the client from > the address class : > class A -> /8 > class B -> /16 > class C -> /24 > If the actual netmask does not match the classful one, the option is > unusable. > > The newer "classless-static-routes" option advertises the netmask (or > prefix length, not sure), but is not supported by all DHCP clients and > servers. IIRC, the ISC DHCP client and server do not natively support > it, you have to define it as a custom option. > > -- David McKisick