Thanks, that patch is working perfectly for me. I look forward to seeing this in the next release. On Tue, Mar 3, 2015 at 10:11 AM, Ondrej Zajicek <santiago@crfreenet.org> wrote:

On Tue, Mar 03, 2015 at 09:48:41AM -0500, Clint Armstrong wrote:

...

So I have briefly tested a change that should allow OSPF broadcast over GRE so long as the multicast flag is set on the GRE interface, enabling the behavior you were initially expecting. I'd love to hear feedback on this, especially if anyone is aware of problems this might cause.

diff --git sysdep/linux/netlink.c sysdep/linux/netlink.c index 860c860..4b543a0 100644 --- sysdep/linux/netlink.c +++ sysdep/linux/netlink.c @@ -431,7 +431,7 @@ nl_parse_link(struct nlmsghdr *h, int scan) f.flags |= IF_MULTIACCESS | IF_LOOPBACK | IF_IGNORE; else if (fl & IFF_POINTOPOINT) /* PtP */ f.flags |= IF_MULTICAST; - else if (fl & IFF_BROADCAST) /* Broadcast */ + else if (fl & (IFF_BROADCAST || IFF_MULTICAST)) /* Broadcast */ f.flags |= IF_MULTIACCESS | IF_BROADCAST | IF_MULTICAST; else f.flags |= IF_MULTIACCESS; /* NBMA */

This would work most likely without problems.

I would use just this one:

diff --git a/sysdep/linux/netlink.c b/sysdep/linux/netlink.c index 860c860..48dd8ba 100644 --- a/sysdep/linux/netlink.c +++ b/sysdep/linux/netlink.c @@ -436,6 +436,9 @@ nl_parse_link(struct nlmsghdr *h, int scan) else f.flags |= IF_MULTIACCESS; /* NBMA */

+ if (fl & IFF_MULTICAST) + f.flags |= IF_MULTICAST; + ifi = if_update(&f);

if (!scan)

-- Elen sila lumenn' omentielvo

Ondrej 'Santiago' Zajicek (email: santiago@crfreenet.org) OpenPGP encrypted e-mails preferred (KeyID 0x11DEADC3, wwwkeys.pgp.net) "To err is human -- to blame it on a computer is even more so."