Date: Fri, 15 Jun 2007 22:14:12 +0000 From: Poul-Henning Kamp <phk@phk.freebsd.dk> To: current@freebsd.org Subject: [REVIEW]: add multicast NULL route Message-ID: <1626.1181945652@critter.freebsd.dk>
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On a system without a default route, multicast simply doesn't work.
This patch adds a route into lo0 for the entire multicast space.
A similar route were created in /etc/netstart until version 1.32
where it was moved to sysconfig (1.14) where the incorrect resolution
to conf/1007 commented it out in (1.36) and subsequently it was
lost in the conversion to new rc world ordering.
As a stylistic feature of this patch, we no longer encroach on the
administrators namespace by prepending a couple of "__" on the
internal magic routes.
Review and comments please.
Index: routing
===================================================================
RCS file: /home/ncvs/src/etc/rc.d/routing,v
retrieving revision 1.143
diff -u -r1.143 routing
--- routing 2 May 2007 15:49:30 -0000 1.143
+++ routing 15 Jun 2007 22:03:59 -0000
@@ -31,12 +31,17 @@
static_start()
{
+ # The multicast range must be covered by a route, one way or another
+ # or multicast will simply not work.
+ static_routes="__mcast ${static_routes}"
+ route___mcast="-static -net 224.0.0.0/4 -interface lo0"
+
case ${defaultrouter} in
[Nn][Oo] | '')
;;
*)
- static_routes="default ${static_routes}"
- route_default="default ${defaultrouter}"
+ static_routes="__default ${static_routes}"
+ route___default="__default ${defaultrouter}"
;;
esac
--
Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
phk@FreeBSD.ORG | TCP/IP since RFC 956
FreeBSD committer | BSD since 4.3-tahoe
Never attribute to malice what can adequately be explained by incompetence.
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