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linux-2.6/net
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Li Wei 4af04aba93 ipv6: Fix for adding multicast route for loopback device automatically. 
There is no obvious reason to add a default multicast route for loopback
devices, otherwise there would be a route entry whose dst.error set to
-ENETUNREACH that would blocking all multicast packets.

====================

[ more detailed explanation ]

The problem is that the resulting routing table depends on the sequence
of interface's initialization and in some situation, that would block all
muticast packets. Suppose there are two interfaces on my computer
(lo and eth0), if we initailize 'lo' before 'eth0', the resuting routing
table(for multicast) would be

# ip -6 route show | grep ff00::
unreachable ff00::/8 dev lo metric 256 error -101
ff00::/8 dev eth0 metric 256

When sending multicasting packets, routing subsystem will return the first
route entry which with a error set to -101(ENETUNREACH).

I know the kernel will set the default ipv6 address for 'lo' when it is up
and won't set the default multicast route for it, but there is no reason to
stop 'init' program from setting address for 'lo', and that is exactly what
systemd did.

I am sure there is something wrong with kernel or systemd, currently I preferred
kernel caused this problem.

====================

Signed-off-by: Li Wei <lw@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 		2011-12-12 18:48:18 -05:00
..
9p net/9p: Convert net/9p protocol dumps to tracepoints 2011-10-24 11:13:12 -05:00
802 net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules 2011-10-31 19:30:30 -04:00
8021q Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux 2011-11-06 19:44:47 -08:00
appletalk net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules 2011-10-31 19:30:30 -04:00
atm net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules 2011-10-31 19:30:30 -04:00
ax25 net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules 2011-10-31 19:30:30 -04:00
batman-adv batman-adv: delete global entry in case of roaming 2011-12-07 03:12:59 +08:00
bluetooth Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless into for-davem 2011-12-09 14:07:12 -05:00
bridge bridge: master device stuck in no-carrier state forever when in user-stp mode 2011-12-01 14:05:17 -05:00
caif caif: fix endian conversion in cffrml_transmit() 2011-11-21 16:46:24 -05:00
can can: remove references to berlios mailinglist 2011-10-17 19:22:46 -04:00
ceph Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client 2011-11-21 12:11:13 -08:00
core net: Silence seq_scale() unused warning 2011-12-06 13:59:16 -05:00
dcb net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules 2011-10-31 19:30:30 -04:00
dccp dccp: fix error propagation in dccp_v4_connect 2011-11-21 16:45:26 -05:00
decnet decnet: proper socket refcounting 2011-11-26 15:49:07 -05:00
dns_resolver
…
dsa net: Fix files explicitly needing to include module.h 2011-10-31 19:30:28 -04:00
econet af_econet: Use current logging styles and neatening 2011-07-03 20:05:16 -07:00
ethernet net: don't clear IFF_XMIT_DST_RELEASE in ether_setup 2011-09-15 14:49:44 -04:00
ieee802154 net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules 2011-10-31 19:30:30 -04:00
ipv4 ipv4: Fix peer validation on cached lookup. 2011-12-05 13:21:42 -05:00
ipv6 ipv6: Fix for adding multicast route for loopback device automatically. 2011-12-12 18:48:18 -05:00
ipx net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules 2011-10-31 19:30:30 -04:00
irda net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules 2011-10-31 19:30:30 -04:00
iucv net: more accurate skb truesize 2011-10-13 16:05:07 -04:00
key net: Remove casts of void * 2011-06-16 23:19:27 -04:00
l2tp l2tp: ensure sk->dst is still valid 2011-11-26 15:57:36 -05:00
lapb wan: make LAPB callbacks const 2011-09-16 19:20:20 -04:00
llc net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules 2011-10-31 19:30:30 -04:00
mac80211 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless into for-davem 2011-12-09 14:07:12 -05:00
netfilter netfilter: Remove ADVANCED dependency from NF_CONNTRACK_NETBIOS_NS 2011-12-01 22:19:01 -05:00
netlabel netlabel: Fix build problems when IPv6 is not enabled 2011-11-29 16:48:52 -05:00
netlink af_unix: dont send SCM_CREDENTIALS by default 2011-09-28 13:29:50 -04:00
netrom net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules 2011-10-31 19:30:30 -04:00
nfc Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux 2011-11-06 19:44:47 -08:00
packet net/packet: Revert incorrect dead-code changes to prb_setup_retire_blk_timer 2011-11-14 21:49:46 -05:00
phonet net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules 2011-10-31 19:30:30 -04:00
rds rds: drop "select LLIST" 2011-11-14 00:10:50 -05:00
rfkill net: add moduleparam.h for users of module_param/MODULE_PARM_DESC 2011-10-31 19:30:29 -04:00
rose net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules 2011-10-31 19:30:30 -04:00
rxrpc net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules 2011-10-31 19:30:30 -04:00
sched sch_red: fix red_change 2011-12-01 19:24:38 -05:00
sctp sctp: better integer overflow check in sctp_auth_create_key() 2011-11-29 15:51:03 -05:00
sunrpc SUNRPC: Ensure we return EAGAIN in xs_nospace if congestion is cleared 2011-11-22 23:55:27 +02:00
tipc net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules 2011-10-31 19:30:30 -04:00
unix AF_UNIX: Fix poll blocking problem when reading from a stream socket 2011-11-26 16:34:22 -05:00
wanrouter wanrouter: Remove kernel_lock annotations 2011-11-07 13:27:30 -05:00
wimax net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules 2011-10-31 19:30:30 -04:00
wireless Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless into for-davem 2011-12-05 11:05:44 -05:00
x25 Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux 2011-11-06 19:44:47 -08:00
xfrm net: Move mtu handling down to the protocol depended handlers 2011-11-26 14:29:51 -05:00
Kconfig NFC: add nfc subsystem core 2011-07-05 15:26:57 -04:00
Makefile NFC: add nfc subsystem core 2011-07-05 15:26:57 -04:00
compat.c net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules 2011-10-31 19:30:30 -04:00
nonet.c
…
socket.c Merge branch 'master' of github.com:davem330/net 2011-09-22 03:23:13 -04:00
sysctl_net.c net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules 2011-10-31 19:30:30 -04:00