How to add rules for protocols beside tcp/udp?

Hi,

I want to allow traffic of the ospf protocol in the work zone. But I found no way to do this, besides custom iptables commands and firewall-cmd --direct rules which are not persistent. There are more than 100 protocols listed in /etc/protocols, so there should be a way to allow a custom protocol.

My best try: firewall-cmd --direct --add-rule ipv4 filter INPUT 99 -d 224.0.0.5 -p ospf -j ACCEPT

How can I get this use case to work with firewalld? Or will this be never supported? I'm trying all this on freshly installed a Fedora 18. What chain should I use? INPUT works for me, but there are others which look more correct, like IN_ZONE_work_allow, IN_ZONE_work or IN_ZONE_work_direct

Regards, Stefan Hellermann