On Tue, Jul 1, 2014 at 5:10 PM, Ben Pfaff <b...@nicira.com> wrote: > On Tue, Jul 01, 2014 at 05:00:45PM -0700, Jesse Gross wrote: >> On Tue, Jul 1, 2014 at 3:49 PM, Ben Pfaff <b...@nicira.com> wrote: >> > I found when reconfiguring my kernel that if I turned on NET_IPGRE, GRE >> > tunnels no longer worked. (I might not understand this issue.) >> > >> > Signed-off-by: Ben Pfaff <b...@nicira.com> >> > --- >> > INSTALL | 5 +++-- >> > 1 file changed, 3 insertions(+), 2 deletions(-) >> > >> > diff --git a/INSTALL b/INSTALL >> > index bfd053b..8b2097f 100644 >> > --- a/INSTALL >> > +++ b/INSTALL >> > @@ -67,8 +67,9 @@ install the following: >> > obsolete and not needed.) >> > >> > To use GRE tunneling on Linux 2.6.37 or newer, kernel support >> > - for GRE must be compiled in or available as a module >> > - (CONFIG_NET_IPGRE_DEMUX). >> > + for GRE demultiplexing (CONFIG_NET_IPGRE_DEMUX) must be compiled >> > + in or available as a module. GRE tunnels over IP (NET_IPGRE) >> > + must not be compiled in and must not be loaded as a module. >> >> Hmm, I don't think that this statement is generally true (on at least >> new kernels, OVS should be able to peacefully coexist with other >> kernel components). What kernel version are you using? > > Upstream 3.2, no local changes. I don't have any particular love for > that version or anything, it's just the version I've been using for > ages. .config attached. > > With NET_IPGRE built in, trying to use GRE fails: > > rpl_gre_cisco_register: cannot register gre_cisco protocol handler > openvswitch: cannot register gre protocol handler > > With NET_IPGRE configured as a module (and not loaded), GRE works OK.
OK, that's expected. I think that if we add "on kernels before 3.11" to the end of your original message then it is accurate. _______________________________________________ dev mailing list dev@openvswitch.org http://openvswitch.org/mailman/listinfo/dev
