Noticed while looking at the minidlna problem with ART, but this is
not responsible for the problem.
/etc/netstart has a "route -qn delete 224.0.0.0/4" before it adds
the multicast reject route:
270 # Multicast routing.
271 route -qn delete 224.0.0.0/4 >/dev/null 2>&1
272 [[ $multicast != YES ]] &&
273 route -qn add -net 224.0.0.0/4 -interface 127.0.0.1 -reject
>/dev/null
So there's no way to hook in to create the route before daemons start.
You can't set it in hostname.if because the "route delete" will zap it.
You can add it in /etc/rc.local but that's a bit late, really. Should
we just get rid of the "delete"?
Index: netstart
===================================================================
RCS file: /cvs/src/etc/netstart,v
retrieving revision 1.167
diff -u -p -r1.167 netstart
--- netstart 29 Dec 2015 19:37:31 -0000 1.167
+++ netstart 27 Mar 2016 15:18:06 -0000
@@ -268,9 +268,10 @@ done
done
# Multicast routing.
-route -qn delete 224.0.0.0/4 >/dev/null 2>&1
-[[ $multicast != YES ]] &&
+if [[ $multicast != YES ]]; then
+ route -qn delete 224.0.0.0/4 >/dev/null 2>&1
route -qn add -net 224.0.0.0/4 -interface 127.0.0.1 -reject >/dev/null
+fi
# Configure PPPoE, GIF, GRE, TUN and PFLOW interfaces, delayed because they
# require routes to be set. TUN might depend on PPPoE, and GIF or GRE may
Here's the code before simplification - i.e. if you set multicast_host
to an interface name, it would add the -interface route at this point
during startup.
270 # Multicast routing.
271 #
272 # The routing to the 224.0.0.0/4 net is setup according to these rules:
273 # multicast_host multicast_router route comment
274 # NO NO -reject no multicast
275 # NO YES none installed daemon will
run
276 # YES/interface NO -interface YES=def.
iface
277 # Any other combination -reject config error
278 route -qn delete 224.0.0.0/4 >/dev/null 2>&1
279 case "$multicast_host:$multicast_router" in
280 NO:NO)
281 route -qn add -net 224.0.0.0/4 -interface 127.0.0.1 -reject
>/dev/null
282 ;;
283 NO:YES)
284 ;;
285 *:NO)
286 maddr=$(if [[ $multicast_host == YES ]]; then
287 ed -s '!route -qn show -inet' <<EOF
288 /^default/p
289 EOF
290 else
291 ed -s "!ifconfig $multicast_host" <<EOF
292 /^ inet /p
293 EOF
294 fi 2>/dev/null)
295 if [[ -n $maddr ]]; then
296 set $maddr
297 route -qn add -net 224.0.0.0/4 -interface $2 >/dev/null
298 else
299 route -qn add -net 224.0.0.0/4 -interface \
300 127.0.0.1 -reject >/dev/null
301 fi
302 ;;
303 *:*)
304 echo 'config error, multicasting disabled until rc.conf is fixed'
305 route -qn add -net 224.0.0.0/4 -interface 127.0.0.1 -reject
>/dev/null
306 ;;
307 esac
