Resending this on netdev mailing list:
Default route for link local address is configured automatically if
NETWORKING_IPV6=yes is in ifcfg-eth*.
When the route table for the interface is flushed and a new address is
added to the same device with out removing linklocal addr, default route
for link local address has to added by default.
I have found the issue to be caused by this checkin
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/net/ipv6?id=62b54dd91567686a1cb118f76a72d5f4764a86dd
According to this change :
He removes adding a link local route if any other address is added ,
applicable across all interfaces though there's mentioned only lo interface
So below patch fixes for other devices
Signed-off-by: Sohny THomas <sohth...@linux.vnet.ibm.com>
-----
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index f62c72b..a8a4df9 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -1763,6 +1763,16 @@ static int addrconf_ifid_infiniband(u8 *eui,
struct net_device *dev)
return 0;
}
+static void addrconf_add_lroute(struct net_device *dev)
+{
+ struct in6_addr addr;
+
+ ipv6_addr_set(&addr, htonl(0xFE800000), 0, 0, 0);
+ addrconf_prefix_route(&addr, 64, dev, 0, 0);
+}
+
+
+
static int __ipv6_isatap_ifid(u8 *eui, __be32 addr)
{
if (addr == 0)
@@ -2010,8 +2020,10 @@ static struct inet6_dev *addrconf_add_dev(struct
net_device *dev)
return ERR_PTR(-EACCES);
/* Add default multicast route */
- if (!(dev->flags & IFF_LOOPBACK))
+ if (!(dev->flags & IFF_LOOPBACK)){
addrconf_add_mroute(dev);
+ addrconf_add_lroute(dev);
+ }
return idev;
}
--
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