+++ /dev/null
-From: Olaf Kirch <okir@suse.de>
-Subject: Allow to bring up network interface w/o ipv6 autoconf
-References: 161888
-
-When bringing up a xen bridge device, it will always be configured to
-use a MAC address of ff:ff:ff:ff:ff:fe. This greatly confuses IPv6 DAD,
-which starts logging lots and lots of useless messages to syslog.
-
-We really want to disable IPv6 on these interfaces, and there doesn't
-seem to be a reliable way to do this without bringing the interface
-up first (and triggering IPv6 autoconf).
-
-This patch makes autoconf (DAD and router discovery) depend on the
-interface's ability to do multicast. Turning off multicast for an
-interface before bringing it up will suppress autoconfiguration.
-
- net/ipv6/addrconf.c | 2 ++
- 1 files changed, 2 insertions(+)
-
-Index: head-2008-09-25/net/ipv6/addrconf.c
-===================================================================
---- head-2008-09-25.orig/net/ipv6/addrconf.c 2008-09-25 13:56:12.000000000 +0200
-+++ head-2008-09-25/net/ipv6/addrconf.c 2008-09-25 14:15:19.000000000 +0200
-@@ -2781,6 +2781,7 @@ static void addrconf_dad_start(struct in
- spin_lock_bh(&ifp->lock);
-
- if (dev->flags&(IFF_NOARP|IFF_LOOPBACK) ||
-+ !(dev->flags&IFF_MULTICAST) ||
- idev->cnf.accept_dad < 1 ||
- !(ifp->flags&IFA_F_TENTATIVE) ||
- ifp->flags & IFA_F_NODAD) {
-@@ -2878,6 +2879,7 @@ static void addrconf_dad_completed(struc
- if (ifp->idev->cnf.forwarding == 0 &&
- ifp->idev->cnf.rtr_solicits > 0 &&
- (dev->flags&IFF_LOOPBACK) == 0 &&
-+ (dev->flags & IFF_MULTICAST) &&
- (ipv6_addr_type(&ifp->addr) & IPV6_ADDR_LINKLOCAL)) {
- /*
- * If a host as already performed a random delay