On 2016-02-22, Etienne <[email protected]> wrote: > Hello there, > > It seems to me that dhcpd is ignoring "option routers" when there is a > "option classless-static-routes" in the same configuration block. Ex: > > with the following: > > option routers 192.168.0.254; > option classless-static-routes 192.168.32.0/24 192.168.0.1; > > dhcpd will start, the client will see its routing table populated with a > route to 192.168.0.32, but not with a default gateway. To achieve what I > intended with the above, I remove "option routers" completely, and I > add: > > option classless-static-routes 192.168.32.0/24 192.168.0.1, > 0.0.0.0/0 192.168.0.254; > > Now the client has a default route and a route to 192.168.32.0/24. I > have verified this with both an OpenBSD client and a Linux client.
This is in the spec. RFC 3442: "If the DHCP server returns both a Classless Static Routes option and a Router option, the DHCP client MUST ignore the Router option." > I don't know if this is intended or not, but if it is, I would suggest > mentioning in man dhcp-options that using "option > classless-static-routes" overrides/ignores "option routers". Probably worth it, I'll bake a diff.
